{"id":4714,"date":"2016-05-18T09:49:00","date_gmt":"2016-05-18T04:19:00","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/ncert-solutions-class-8-maths-exercise-8-3\/"},"modified":"2018-06-26T16:20:19","modified_gmt":"2018-06-26T10:50:19","slug":"ncert-solutions-for-class-8-maths-exercise-8-3","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/","title":{"rendered":"NCERT Solutions for Class 8 Maths Exercise 8.3"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#NCERT_Solutions_for_Class_8_Maths_Comparing_Quantities\" >NCERT Solutions for Class 8 Maths\u00a0Comparing Quantities<\/a><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><ul class='ez-toc-list-level-6' ><li class='ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#Class_%E2%80%93VIII_Mathematics_Ex_83\" >Class \u2013VIII Mathematics (Ex. 8.3)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#NCERT_SOLUTION\" >NCERT SOLUTION<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#1_Calculate_the_amount_and_compound_interest_on\" >1. Calculate the amount and compound interest on:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#b_Here_Principal_P_Rs_18000_Time_years_Rate_of_interest_R\" >(b) Here, Principal (P) = Rs. 18,000, Time \u00a0= \u00a0\u00a0years, Rate of interest (R)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#c_Here_Principal_P_Rs_62500_Time_years_3_years_compounded_half_yearly\" >(c) Here, Principal (P) = Rs. 62500, Time \u00a0= = \u00a0years = 3 years (compounded half yearly)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#d_Here_Principal_P_Rs_8000_Time_1_years_2_yearscompounded_half_yearly\" >(d) Here, Principal (P) = Rs. 8000, Time \u00a0= 1 years = 2 years(compounded half yearly)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#e_Here_Principal_P_Rs_10000_Time_1_years_2_years_compounded_half_yearly\" >(e) Here, Principal (P) = Rs. 10,000, Time \u00a0= 1 years = 2 years (compounded half yearly)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#2_Kamala_borrowed_Rs26400_from_a_Bank_to_buy_a_scooter_at_a_rate_of_15_pa_compounded_yearly_What_amount_will_she_pay_at_the_end_of_2_years_and_4_months_to_clear_the_loan\" >2. Kamala borrowed Rs.26,400 from a Bank to buy a scooter at a rate of 15% p.a. compounded yearly. What amount will she pay at the end of 2 years and 4 months to clear the loan?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#3_Fabina_borrows_Rs12500_per_annum_for_3_years_at_simple_interest_and_Radhaborrows_the_same_amount_for_the_same_time_period_at_10_per_annnum_compounded_annually_Who_pays_more_interest_and_by_how_much\" >3. Fabina borrows Rs.12,500 per annum for 3 years at simple interest and Radhaborrows the same amount for the same time period at 10% per annnum, compounded annually. Who pays more interest and by how much?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#4_I_borrowsRs12000_from_Jamshed_at_6_per_annum_simple_interest_for_2_years_Had_I_borrowed_this_sum_at_6_per_annum_compound_interest_what_extra_amount_would_I_have_to_pay\" >4. I borrowsRs.12,000 from Jamshed at 6% per annum simple interest for 2 years. Had I borrowed this sum at 6% per annum compound interest, what extra amount would I have to pay?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#5_Vasudevan_invested_Rs60000_at_an_interest_rate_of_12_per_annum_compounded_half_yearly_What_amount_would_he_get\" >5. Vasudevan invested Rs.60,000 at an interest rate of 12% per ann^um compounded half yearly. What amount would he get:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#6_Arif_took_a_loan_of_Rs80000_from_a_bank_If_the_rate_of_interest_is_10_per_annum_find_the_difference_in_amounts_he_would_be_paying_after_years_if_the_interest_is\" >6. Arif took a loan of Rs.80,000 from a bank. If the rate of interest is 10% per annum, find the difference in amounts he would be paying after \u00a0years if the interest is:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#7_Maria_invested_Rs8000_in_a_business_She_would_be_paid_interest_at_5_per_annum_compounded_annually_Find\" >7. Maria invested Rs.8,000 in a business. She would be paid interest at 5% per annum compounded annually. Find:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#ii_Here_Principal_P_Rs_8000_Rate_of_Interest_R_5_Time_3_years\" >(ii) Here, Principal (P) = Rs. 8000, Rate of Interest (R) = 5%, Time \u00a0= 3 years<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#8_Find_the_amount_and_the_compound_interest_on_Rs10000_for_years_at_10_per_annum_compounded_half_yearly\" >8. Find the amount and the compound interest on Rs.10,000 for \u00a0years at 10% per annum, compounded half yearly.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#9_Find_the_amount_which_Ram_will_get_on_Rs4096_if_he_gave_it_for_18_months_at_per_annum_interest_being_compounded_half_yearly\" >9. Find the amount which Ram will get on Rs.4,096, if he gave it for 18 months at \u00a0per annum, interest being compounded half yearly.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#10_The_population_of_a_place_increased_to_54000_in_2003_at_a_rate_of_5_per_annum\" >10. The population of a place increased to 54,000 in 2003 at a rate of 5% per annum.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#ii_According_to_question_population_is_increasing_Therefore_population_in_2005\" >(ii) According to question, population is increasing. Therefore population in 2005,<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#11_In_a_laboratory_the_count_of_bacteria_in_a_certain_experiment_was_increasing_at_the_rate_of_25_per_hour_Find_the_bacteria_at_the_end_of_2_hours_if_the_count_was_initially_506000\" >11. In a laboratory, the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour. Find the bacteria at the end of 2 hours if the count was initially 5,06,000.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-6'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#12_A_scooter_was_bought_at_Rs42000_Its_value_depreciated_at_the_rate_of_8_per_annum_Find_its_value_after_one_year\" >12. A scooter was bought at Rs.42,000. Its value depreciated at the rate of 8% per annum. Find its value after one year.<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#NCERT_Solutions_for_Class_8_Maths_Exercise_83\" >NCERT Solutions for Class 8 Maths Exercise 8.3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/#CBSE_app_for_Class_8\" >CBSE app for Class 8<\/a><\/li><\/ul><\/nav><\/div>\n<p>NCERT Solutions for Class 8 Maths Exercise 8.3 Class 8 Maths book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 8 Maths chapter wise NCERT solution for Maths Book all the chapters can be downloaded from our website and myCBSEguide mobile app for free.<\/p>\n<p style=\"text-align: center;\"><strong>NCERT solutions for Class 8 Maths\u00a0Comparing Quantities\u00a0<a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-08-mathematics-comparing-quantities\/1457\/ncert-solutions\/5\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/08_Maths_Book.jpg\" alt=\"NCERT Solutions for Class 8 Maths Exercise 8.3\" width=\"159\" height=\"200\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_8_Maths_Comparing_Quantities\"><\/span>NCERT Solutions for Class 8 Maths\u00a0Comparing Quantities<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h6 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"Class_%E2%80%93VIII_Mathematics_Ex_83\"><\/span><strong>Class \u2013VIII Mathematics (Ex. 8.3)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<h6 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"NCERT_SOLUTION\"><\/span><strong>NCERT SOLUTION<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<h6><span class=\"ez-toc-section\" id=\"1_Calculate_the_amount_and_compound_interest_on\"><\/span><strong>1. Calculate the amount and compound interest on:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(a) Rs.10,800 for 3 years at <\/strong><img decoding=\"async\" style=\"height: 41px; width: 47px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image001.png\" \/><strong>\u00a0per annum compounded annually.<\/strong><\/p>\n<p><strong>(b) Rs.18,000 for <\/strong><img decoding=\"async\" style=\"height: 41px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image002.png\" \/><strong>\u00a0years at 10% per annum compounded annually.<\/strong><\/p>\n<p><strong>(c) Rs.62,500 for <\/strong><img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/><strong>\u00a0years at 8% per annum compounded annually.<\/strong><\/p>\n<p><strong>(d) Rs.8,000 for <\/strong><img decoding=\"async\" style=\"height: 17px; width: 9px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image004.png\" \/><strong>\u00a0years at 9% per annum compounded half yearly. (You could the year by year calculation using S.I. formula to verify).<\/strong><\/p>\n<p><strong>(e) Rs.10,000 for <\/strong><img decoding=\"async\" style=\"height: 17px; width: 9px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image004.png\" \/><strong>\u00a0years at 8% per annum compounded half yearly.<\/strong><\/p>\n<p><strong>Ans. (a) <\/strong>Here, Principal (P) = Rs. 10800, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 3 years,<\/p>\n<p>Rate of interest (R) = <img decoding=\"async\" style=\"height: 41px; width: 96px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image006.png\" \/><\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 131px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image008.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 49px; width: 116px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image009.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 95px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image010.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 49px; width: 76px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image011.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 111px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image012.png\" \/><\/p>\n<p>= Rs. 15,377.34<\/p>\n<p>Compound Interest (C.I.) = A \u2013 P<\/p>\n<p>= Rs. 10800 \u2013 Rs. 15377.34 = Rs. 4,577.34<\/p>\n<h6><span class=\"ez-toc-section\" id=\"b_Here_Principal_P_Rs_18000_Time_years_Rate_of_interest_R\"><\/span><strong>(b)<\/strong> Here, Principal (P) = Rs. 18,000, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image002.png\" \/>\u00a0\u00a0years, Rate of interest (R)<span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p>= 10% p.a.<\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 111px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image013.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 49px; width: 103px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image014.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 83px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image015.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 101px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image016.png\" \/><\/p>\n<p>= Rs. 21,780<\/p>\n<p>Interest for <img decoding=\"async\" style=\"height: 41px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image017.png\" \/>\u00a0years on Rs. 21,780 at rate of 10% = <img decoding=\"async\" style=\"height: 41px; width: 92px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image018.png\" \/>\u00a0= Rs. 1,089<\/p>\n<p>Total amount for <img decoding=\"async\" style=\"height: 41px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image002.png\" \/>\u00a0years<\/p>\n<p>= Rs. 21,780 + Rs. 1089 = Rs. 22,869<\/p>\n<p>Compound Interest (C.I.) = A \u2013 P<\/p>\n<p>= Rs. 22869 \u2013 Rs. 18000 = Rs. 4,869<\/p>\n<h6><span class=\"ez-toc-section\" id=\"c_Here_Principal_P_Rs_62500_Time_years_3_years_compounded_half_yearly\"><\/span><strong>(c)<\/strong> Here, Principal (P) = Rs. 62500, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/>= <img decoding=\"async\" style=\"height: 41px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image019.png\" \/>\u00a0years = 3 years (compounded half yearly)<span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p>Rate of interest (R) = 8% = 4% (compounded half yearly)<\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 112px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image020.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 104px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image021.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image022.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 137px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image023.png\" \/><\/p>\n<p>= Rs. 70,304<\/p>\n<p>Compound Interest (C.I.) = A \u2013 P<\/p>\n<p>= Rs. 70304 \u2013 Rs. 62500 = Rs. 7,804<\/p>\n<h6><span class=\"ez-toc-section\" id=\"d_Here_Principal_P_Rs_8000_Time_1_years_2_yearscompounded_half_yearly\"><\/span><strong>(d)<\/strong> Here, Principal (P) = Rs. 8000, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 1 years = 2 years(compounded half yearly)<span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p>Rate of interest (R) = 9% = <img decoding=\"async\" style=\"height: 41px; width: 31px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image024.png\" \/>\u00a0(compounded half yearly)<\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 124px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image025.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image026.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image027.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 115px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image028.png\" \/><\/p>\n<p>= Rs. 8,736.20<\/p>\n<p>Compound Interest (C.I.) = A \u2013 P<\/p>\n<p>= Rs. 8736.20 \u2013 Rs. 8000<\/p>\n<p>= Rs. 736.20<\/p>\n<h6><span class=\"ez-toc-section\" id=\"e_Here_Principal_P_Rs_10000_Time_1_years_2_years_compounded_half_yearly\"><\/span><strong>(e)<\/strong> Here, Principal (P) = Rs. 10,000, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 1 years = 2 years (compounded half yearly)<span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p>Rate of interest (R) = 8% = 4% (compounded half yearly)<\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 111px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image029.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 104px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image030.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image031.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image032.png\" \/><\/p>\n<p>= Rs. 10,816<\/p>\n<p>Compound Interest (C.I.) = A \u2013 P<\/p>\n<p>= Rs. 10,816 \u2013 Rs. 10,000 = Rs. 816<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"2_Kamala_borrowed_Rs26400_from_a_Bank_to_buy_a_scooter_at_a_rate_of_15_pa_compounded_yearly_What_amount_will_she_pay_at_the_end_of_2_years_and_4_months_to_clear_the_loan\"><\/span><strong>2. Kamala borrowed Rs.26,400 from a Bank to buy a scooter at a rate of 15% p.a. compounded yearly. What amount will she pay at the end of 2 years and 4 months to clear the loan?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(Hint: Find A for 2 years with interest is compounded yearly and then find SI on the 2<sup>nd<\/sup> year amount for <img decoding=\"async\" style=\"height: 41px; width: 21px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image033.png\" \/>\u00a0years).<\/strong><\/p>\n<p><strong>Ans. <\/strong>Here, Principal (P) = Rs. 26,400, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 2 years 4 months, Rate of interest (R) = 15% p.a.<\/p>\n<p>Amount for 2 years (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 112px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image034.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 49px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image035.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 87px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image036.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 107px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image037.png\" \/><\/p>\n<p>= Rs. 34,914<\/p>\n<p>Interest for 4 months = <img decoding=\"async\" style=\"height: 41px; width: 47px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image038.png\" \/>\u00a0years at the rate of 15% = <img decoding=\"async\" style=\"height: 41px; width: 91px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image039.png\" \/><\/p>\n<p>= Rs. 1745.70<\/p>\n<p><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image040.png\" \/>\u00a0Total amount = Rs. 34,914 + Rs. 1,745.70<\/p>\n<p>= Rs. 36,659.70<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"3_Fabina_borrows_Rs12500_per_annum_for_3_years_at_simple_interest_and_Radhaborrows_the_same_amount_for_the_same_time_period_at_10_per_annnum_compounded_annually_Who_pays_more_interest_and_by_how_much\"><\/span><strong>3. Fabina borrows Rs.12,500 per annum for 3 years at simple interest and Radhaborrows the same amount for the same time period at 10% per annnum, compounded annually. Who pays more interest and by how much?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Here, Principal (P) = Rs.12,500, Time <img decoding=\"async\" style=\"height: 27px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image041.png\" \/>\u00a0= 3 years, Rate of interest (R)<\/p>\n<p>= 12% p.a.<\/p>\n<p>Simple Interest for Fabina = <img decoding=\"async\" style=\"height: 41px; width: 64px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image042.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 92px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image043.png\" \/>\u00a0= Rs. 4,500<\/p>\n<p>Amount for Radha, P = Rs. 12,500, R = 10% and <img decoding=\"async\" style=\"height: 15px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image044.png\" \/>\u00a0= 3 years<\/p>\n<p>Amount (A)\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 109px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image045.png\" \/>= <img decoding=\"async\" style=\"height: 49px; width: 101px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image046.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 83px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image047.png\" \/>= <img decoding=\"async\" style=\"height: 41px; width: 131px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image048.png\" \/><\/p>\n<p>= Rs. 16,637.50<\/p>\n<p><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image040.png\" \/>\u00a0C.I. for Radha = A \u2013 P<\/p>\n<p>= Rs. 16,637.50 \u2013 Rs. 12,500 = Rs. 4,137.50<\/p>\n<p>Here, Fabina pays more interest<\/p>\n<p>= Rs. 4,500 \u2013 Rs. 4,137.50 = Rs. 362.50<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"4_I_borrowsRs12000_from_Jamshed_at_6_per_annum_simple_interest_for_2_years_Had_I_borrowed_this_sum_at_6_per_annum_compound_interest_what_extra_amount_would_I_have_to_pay\"><\/span><strong>4. I borrowsRs.12,000 from Jamshed at 6% per annum simple interest for 2 years. Had I borrowed this sum at 6% per annum compound interest, what extra amount would I have to pay?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Here, Principal (P) = Rs.12,000, Time <img decoding=\"async\" style=\"height: 27px; width: 27px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image041.png\" \/>\u00a0= 2 years, Rate of interest (R) = 6% p.a.<\/p>\n<p>Simple Interest = <img decoding=\"async\" style=\"height: 41px; width: 64px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image042.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 87px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image049.png\" \/>\u00a0= Rs. 1,440<\/p>\n<p>Had he borrowed this sum at 6% p.a., then<\/p>\n<p>Compound Interest\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 111px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image050.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 164px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image051.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 157px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image052.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 137px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image053.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 156px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image054.png\" \/><\/p>\n<p>= Rs. 13,483.20 \u2013 Rs. 12,000<\/p>\n<p>= Rs. 1,483.20<\/p>\n<p>Difference in both interests<\/p>\n<p>= Rs. 1,483.20 \u2013 Rs. 1,440.00 = Rs. 43.20<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"5_Vasudevan_invested_Rs60000_at_an_interest_rate_of_12_per_annum_compounded_half_yearly_What_amount_would_he_get\"><\/span><strong>5. Vasudevan invested Rs.60,000 at an interest rate of 12% per ann^um compounded half yearly. What amount would he get:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(i) after 6 months?<\/strong><\/p>\n<p><strong>(ii) after 1 year?<\/strong><\/p>\n<p><strong>Ans. (i)<\/strong> Here, Principal (P) = Rs. 60,000,<\/p>\n<p>Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 6 months = 1 year(compounded half yearly)<\/p>\n<p>Rate of interest (R) = 12% = 6% (compounded half yearly)<\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 109px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image055.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 103px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image056.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 84px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image057.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 75px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image058.png\" \/><\/p>\n<p>= Rs. 63,600<\/p>\n<p>After 6 months Vasudevan would get amount Rs. 63,600.<\/p>\n<p><strong>(ii)<\/strong> Here, Principal (P) = Rs. 60,000,<\/p>\n<p>Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 1 year = 2 year(compounded half yearly)<\/p>\n<p>Rate of interest (R) = 12% = 6% (compounded half yearly)<\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 112px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image059.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image060.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image061.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image062.png\" \/><\/p>\n<p>= Rs. 67,416<\/p>\n<p>After 1 year Vasudevan would get amount Rs. 67,416.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"6_Arif_took_a_loan_of_Rs80000_from_a_bank_If_the_rate_of_interest_is_10_per_annum_find_the_difference_in_amounts_he_would_be_paying_after_years_if_the_interest_is\"><\/span><strong>6. Arif took a loan of Rs.80,000 from a bank. If the rate of interest is 10% per annum, find the difference in amounts he would be paying after <\/strong><img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/><strong>\u00a0years if the interest is:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(i) compounded annually.<\/strong><\/p>\n<p><strong>(ii) compounded half yearly.<\/strong><\/p>\n<p><strong>Ans. (i)<\/strong> Here, Principal (P) = Rs. 80,000, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/>\u00a0years, Rate of interest (R) = 10%<\/p>\n<p>Amount for 1 year (A)\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 109px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image063.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 101px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image064.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 83px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image065.png\" \/><\/p>\n<p>= Rs. 88,000<\/p>\n<p>Interest for <img decoding=\"async\" style=\"height: 41px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image017.png\" \/>\u00a0year = <img decoding=\"async\" style=\"height: 41px; width: 91px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image066.png\" \/><\/p>\n<p>= Rs. 4,400<\/p>\n<p>Total amount = Rs. 88,000 + Rs. 4,400 = Rs. 92,400<\/p>\n<p><strong>(ii)<\/strong> Here, Principal (P) = Rs.80,000,<\/p>\n<p>Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/>\u00a0year = 3year (compounded half yearly)<\/p>\n<p>Rate of interest (R) = 10% = 5% (compounded half yearly)<\/p>\n<p>Amount (A) = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 111px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image067.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 104px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image068.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image069.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 137px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image070.png\" \/><\/p>\n<p>= Rs. 92,610<\/p>\n<p>Difference in amounts<\/p>\n<p>= Rs. 92,610 \u2013 Rs. 92,400 = Rs. 210<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"7_Maria_invested_Rs8000_in_a_business_She_would_be_paid_interest_at_5_per_annum_compounded_annually_Find\"><\/span><strong>7. Maria invested Rs.8,000 in a business. She would be paid interest at 5% per annum compounded annually. Find:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(i) The amount credited against her name at the end of the second year.<\/strong><\/p>\n<p><strong>(ii) The interest for the third year.<\/strong><\/p>\n<p><strong>Ans. (i)<\/strong> Here, Principal (P) = Rs. 8000, Rate of Interest (R) = 5%, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 2 years<\/p>\n<p>Amount (A)\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 103px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image071.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 97px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image072.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 77px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image073.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 99px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image074.png\" \/><\/p>\n<p>= Rs. 8,820<\/p>\n<h6><span class=\"ez-toc-section\" id=\"ii_Here_Principal_P_Rs_8000_Rate_of_Interest_R_5_Time_3_years\"><\/span><strong>(ii)<\/strong> Here, Principal (P) = Rs. 8000, Rate of Interest (R) = 5%, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 3 years<span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p>Amount (A)\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 103px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image075.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 96px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image076.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 77px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image077.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 129px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image078.png\" \/><\/p>\n<p>= Rs. 9,261<\/p>\n<p>Interest for 3<sup>rd<\/sup> year = A \u2013 P<\/p>\n<p>= Rs. 9,261 \u2013 Rs. 8,820 = Rs. 441<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"8_Find_the_amount_and_the_compound_interest_on_Rs10000_for_years_at_10_per_annum_compounded_half_yearly\"><\/span><strong>8. Find the amount and the compound interest on Rs.10,000 for <\/strong><img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/><strong>\u00a0years at 10% per annum, compounded half yearly.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Would this interest be more than the interest he would get if it was compounded annually?<\/strong><\/p>\n<p><strong>Ans. <\/strong>Here, Principal (P) = Rs. 10000, Rate of Interest (R) = 10% = 5% (compounded half yearly)<\/p>\n<p>Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/>\u00a0years = 3 years (compounded half yearly)<\/p>\n<p>Amount (A)\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 109px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image079.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 104px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image080.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 84px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image081.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 136px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image082.png\" \/><\/p>\n<p>= Rs. 11,576.25<\/p>\n<p>Compound Interest (C.I.) = A \u2013 P<\/p>\n<p>= Rs. 11,576.25 \u2013 Rs. 10,000 = Rs. 1,576.25<\/p>\n<p>If it is compounded annually, then<\/p>\n<p>Here, Principal (P) = Rs. 10000, Rate of Interest (R) = 10%, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= <img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/>\u00a0years<\/p>\n<p>Amount (A) for 1 year\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 108px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image083.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 100px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image084.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 81px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image085.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 72px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image086.png\" \/><\/p>\n<p>= Rs. 11,000<\/p>\n<p>Interest for <img decoding=\"async\" style=\"height: 41px; width: 16px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image017.png\" \/>\u00a0year = <img decoding=\"async\" style=\"height: 41px; width: 89px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image087.png\" \/>\u00a0= Rs. 550<\/p>\n<p><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image040.png\" \/>\u00a0Total amount = Rs. 11,000 + Rs. 550<\/p>\n<p>= Rs. 11,550<\/p>\n<p>Now, C.I. = A \u2013 P = Rs. 11,550 \u2013 Rs. 10,000<\/p>\n<p>= Rs. 1,550<\/p>\n<p>Yes, interest Rs. 1,576.25 is more than Rs. 1,550.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"9_Find_the_amount_which_Ram_will_get_on_Rs4096_if_he_gave_it_for_18_months_at_per_annum_interest_being_compounded_half_yearly\"><\/span><strong>9. Find the amount which Ram will get on Rs.4,096, if he gave it for 18 months at <\/strong><img decoding=\"async\" style=\"height: 41px; width: 47px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image001.png\" \/><strong>\u00a0per annum, interest being compounded half yearly.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Here, Principal (P) = Rs. 4096,<\/p>\n<p>Rate of Interest (R) = <img decoding=\"async\" style=\"height: 41px; width: 81px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image088.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 39px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image089.png\" \/>\u00a0(compounded half yearly)<\/p>\n<p>Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 18 months = <img decoding=\"async\" style=\"height: 41px; width: 23px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image003.png\" \/>\u00a0years = 3 years (compounded half yearly)<\/p>\n<p>Amount (A)\u00a0 =<\/p>\n<p><img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 124px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image090.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 109px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image091.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 76px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image092.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 125px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image093.png\" \/><\/p>\n<p>= Rs. 4,913<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"10_The_population_of_a_place_increased_to_54000_in_2003_at_a_rate_of_5_per_annum\"><\/span><strong>10. The population of a place increased to 54,000 in 2003 at a rate of 5% per annum.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>(i) Find the population in 2001.<\/strong><\/p>\n<p><strong>(ii) What would be its population in 2005?<\/strong><\/p>\n<p><strong>Ans.<\/strong> <strong>(i) <\/strong>Here,\u00a0 A<sub>2003<\/sub> = Rs. 54,000, R = 5%, <img decoding=\"async\" style=\"height: 15px; width: 13px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image044.png\" \/>\u00a0= 2 years<\/p>\n<p>Population would be less in 2001 than 2003 in two years.<\/p>\n<p>Here population is increasing.<\/p>\n<p><img decoding=\"async\" style=\"height: 13px; width: 15px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image040.png\" \/>\u00a0A<sub>2003<\/sub> = <img decoding=\"async\" style=\"height: 49px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image094.png\" \/><\/p>\n<p><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image095.png\" \/>\u00a054000 = <img decoding=\"async\" style=\"height: 49px; width: 104px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image096.png\" \/><\/p>\n<p><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image095.png\" \/>\u00a054000 = <img decoding=\"async\" style=\"height: 49px; width: 99px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image097.png\" \/><\/p>\n<p><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image095.png\" \/>\u00a054000 = <img decoding=\"async\" style=\"height: 49px; width: 79px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image098.png\" \/><\/p>\n<p><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image095.png\" \/>\u00a054000 = <img decoding=\"async\" style=\"height: 41px; width: 95px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image099.png\" \/><\/p>\n<p><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image095.png\" \/>\u00a0<img decoding=\"async\" style=\"height: 41px; width: 148px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image100.png\" \/><\/p>\n<p><img decoding=\"async\" style=\"height: 16px; width: 20px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image095.png\" \/>\u00a0<img decoding=\"async\" style=\"height: 24px; width: 45px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image101.png\" \/>48,980 (approx.)<\/p>\n<h6><span class=\"ez-toc-section\" id=\"ii_According_to_question_population_is_increasing_Therefore_population_in_2005\"><\/span><strong>(ii)<\/strong> According to question, population is increasing. Therefore population in 2005,<span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p>A<sub>2005<\/sub>\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 112px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image102.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 105px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image103.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image104.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 107px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image105.png\" \/><\/p>\n<p>= 59,535<\/p>\n<p>Hence population in 2005 would be 59,535.<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"11_In_a_laboratory_the_count_of_bacteria_in_a_certain_experiment_was_increasing_at_the_rate_of_25_per_hour_Find_the_bacteria_at_the_end_of_2_hours_if_the_count_was_initially_506000\"><\/span><strong>11. In a laboratory, the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour. Find the bacteria at the end of 2 hours if the count was initially 5,06,000.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Here, Principal (P) = 5,06,000, Rate of Interest (R) = 2.5%, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 2 hours<\/p>\n<p>After 2 hours, number of bacteria,<\/p>\n<p>Amount (A)\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image007.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 120px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image106.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 128px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image107.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 113px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image108.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 93px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image109.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 115px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image110.png\" \/><\/p>\n<p>= 5,31,616.25<\/p>\n<p>Hence, number of bacteria after two hours are 531616 (approx.).<\/p>\n<hr \/>\n<p style=\"text-align: center;\">NCERT Solutions for Class 8 Maths Exercise 8.3<\/p>\n<h6><span class=\"ez-toc-section\" id=\"12_A_scooter_was_bought_at_Rs42000_Its_value_depreciated_at_the_rate_of_8_per_annum_Find_its_value_after_one_year\"><\/span><strong>12. A scooter was bought at Rs.42,000. Its value depreciated at the rate of 8% per annum. Find its value after one year.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h6>\n<p><strong>Ans. <\/strong>Here, Principal (P) = Rs. 42,000, Rate of Interest (R) = 8%, Time <img decoding=\"async\" style=\"height: 27px; width: 25px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image005.png\" \/>\u00a0= 1 years<\/p>\n<p>Amount (A)\u00a0 = <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image111.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 109px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image112.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 104px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image113.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 49px; width: 85px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image114.png\" \/><\/p>\n<p>= <img decoding=\"async\" style=\"height: 41px; width: 76px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/ncert\/08\/maths\/8_3\/image115.png\" \/><\/p>\n<p>= Rs. 38,640<\/p>\n<p>Hence, the value of scooter after one year is Rs. 38,640.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_8_Maths_Exercise_83\"><\/span>NCERT Solutions for Class 8 Maths Exercise 8.3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>NCERT Solutions Class 8\u00a0Mathematics PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 8\u00a0Mathematics includes text book solutions from Class 8 Maths Book . NCERT Solutions for CBSE Class 8 Maths have total 16 chapters. 8 Maths NCERT Solutions in PDF for free Download on our website. Ncert class 8 solutions PDF and Maths ncert class 8 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_app_for_Class_8\"><\/span>CBSE app for Class 8<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To download\u00a0NCERT Solutions for class 8 Social Science, Computer Science, Home Science,Hindi ,English, Maths Science do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 8 Maths Exercise 8.3 Class 8 Maths book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 8 &#8230; <a title=\"NCERT Solutions for Class 8 Maths Exercise 8.3\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/ncert-solutions-for-class-8-maths-exercise-8-3\/\" aria-label=\"More on NCERT Solutions for Class 8 Maths Exercise 8.3\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":-1,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1382,281],"tags":[283,1523,321,1485,216],"class_list":["post-4714","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mathematics-cbse-class-08","category-ncert-solutions","tag-cbse-study-material","tag-class-8","tag-mathematics","tag-maths","tag-ncert-solutions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCERT Solutions for Class 8 Maths Exercise 8.3 | myCBSEguide<\/title>\n<meta name=\"description\" content=\"NCERT Solutions for Class 8 Maths Exercise 8.3 in PDF format for free download. 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