CBSE > Class 08 > Mathematics | CBSE Board | Homework Help

P=Rs.7500 R=4%p.a T=3 years A=P(1+R/100)^3 =7500(1+4/100)^3 =7500(1+1/25)^3 =7500(26/25)^3 =7500×17576/15625 =Rs.8436.48 C.I.=A - P =Rs.8436.48 - Rs.7500 =Rs.936.42

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ex 11.3questions no.9

Posted by Geeta Devi 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Nikita Queen 7 years, 1 month ago

1980m×m

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if 6 boys can finish a work in 18 days, how long will 54 boys take to finish the same work?

Posted by Nikinth Sasen 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Anjali Kumari 7 years, 1 month ago

6×18/54 =2days 54 boys will take 2 days to complete the same work

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what is formula to find the area of polygon

Posted by Muskan Dixit 7 years, 1 month ago

CBSE > Class 08 > Mathematics

2 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Name the polygon of which you want to find the area.

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Sandeep Kumar Behar 7 years, 1 month ago

By mehndi

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what is formula to find tge area of polygon

Posted by Muskan Dixit 7 years, 1 month ago

CBSE > Class 08 > Mathematics

2 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Name the polygon of which you want find the area.

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Keerthana Keeru 7 years, 1 month ago

Which polygon

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Find the amount and the compound interest ,if the interest is compounded yearly $300 at 3%per annum for 2 years

Posted by Gyanti Kumari 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Shourya Pratap Sangwan 7 years, 1 month ago

P=Rs.300 R=3%p.a T=2 years A=P(1+R/100)^T =300(1+3/100)^2 =300(103/100)^2 =300(31209/10000) =Rs.936.27 C.I=A - P =Rs.936.27 - Rs.300 =Rs.636.27

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what is area of a cylender

Posted by Shailja Singh 7 years, 1 month ago

CBSE > Class 08 > Mathematics

4 answers

Krish Sharma 7 years, 1 month ago

2πr(h+r)

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Yuvika Mourya 7 years, 1 month ago

(22/7)^2 r h, is the area of cylinder.

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Shourya Pratap Sangwan 7 years, 1 month ago

Total surface area=2(22/7)rh+2(22/7)r^2 Curved surface area=2(22/7)rh

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Jaiswal Priyaansh 7 years, 1 month ago

2πrh+2πr2

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find the product of the following (y_1),(3y+2)=?

Posted by Khushi Keshubhai 7 years, 1 month ago

CBSE > Class 08 > Mathematics

2 answers

Shourya Pratap Sangwan 7 years, 1 month ago

(y - 1)(3y + 2) =3y(y - 1) + 2(y - 1) =3y^2 - 3y + 2y - 2 =3y^2 - y - 2

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Yogita Ingle 7 years, 1 month ago

(y - 1) (3y + 2) = y(3y + 2) - 1(3y + 2)
= 3y² + 2y - 3y - 2
= 3y²- y - 2

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15x-2(2x-7)=(3x-1)+7/2

Posted by Apurba Saha 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Shourya Pratap Sangwan 7 years, 1 month ago

15x - 4x + 14 = 3x - 1 + 7/2 15x -4x -3x = (-14) -1 + 7/2 8x = (7/2) -15 8x = (7 -30)/2 8x = (-23/2) x = (-11.5)×1/8 x = (-1437.5)

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(y_1),(3y+2)

Posted by Khushi Keshubhai 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Shourya Pratap Sangwan 7 years, 1 month ago

(y-1)(3y+2)=y(3y+2)-1(3y+2)=3y^2-y-2

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x^2 + 5x -1/2 is a

Posted by Sneha Singla 7 years, 1 month ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Expand the following 1025.63

Posted by Nakul Jangra 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Vedant Joshi 7 years, 1 month ago

1000+20+5+(6÷10)+(3÷100)

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Question paper for chap 14

Posted by Meet Bheda 5 years, 11 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

The perimeter of a trapezium is 104 m, its non-parallel sides are 18 m amd 22 m, and its height is 16 m. Find the area of trapezium

Posted by Priyanka K 7 years, 1 month ago

CBSE > Class 08 > Mathematics

2 answers

Bhoomika . 7 years, 1 month ago

Let the ll sides be x and y....... perimeter=x+y+18+22=x+y+40=104....... x+y=60 area=1/2(x+y)h =1/2(60)16=480 m^2

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Shourya Pratap Sangwan 7 years, 1 month ago

Let sum of non-parallel sides be (a+b). Perimeter=104m. a+b+22+18=104. a+b=104-40. (a+b)=64. Area=(height(a+b)1/2)=(16×64×1/2) =512m^2.

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( bracket x ki power 4 bracket minus y cube + Z

Posted by Abhay Tomar 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Type using symbols.plz.

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Show on a line graph multiples of 2

Posted by Neetu Khurana 7 years, 1 month ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

How to solve 9.5

Posted by Ayush Surve 7 years, 1 month ago

CBSE > Class 08 > Mathematics

2 answers

Pushp Raj 7 years, 1 month ago

(a+b)(a+b) (a-b)(a-b) (a+b)(a-b) (x+a)(x+b)

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Pushp Raj 7 years, 1 month ago

With identity

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What is curved surface area of cuboid,cube and cylinder

Posted by Ranveer Singh 7 years, 1 month ago

CBSE > Class 08 > Mathematics

3 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Curved surface area of cuboid=2(L+B)H. Curved surface area of cube=4L^2 Curved surface area of cylinder=2(22/7)rh

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Muskan Jha 7 years, 1 month ago

C. S. A of a cylinder =2πrh

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Tarun Kumar 7 years, 1 month ago

Curved surface area of cuboid=2(l+b)h

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Find the volume of a cylinder given the circumference of the base is 176cm and hieght 30cm

Posted by Hemander Singh 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Circunference=176=2(22/7)r. 176×7/44=r. 28=r. Volume=(22/7)(r^2)h. V=(22/7)28×28×30=73920cm^2

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Diagonal AC AND BD of a rectangle ABCD INTERSECT each other at o if oa=7 cm find AC AND BD

Posted by Lucifer Legend 7 years, 1 month ago

CBSE > Class 08 > Mathematics

2 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Diagonals of a rectangle bisect each other... They are equal and (hence) each divided into two equal parts.... Thus,AC=2AO=2×7=14cm...14cm=AC=BD..

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Vaishnav Bhosale 7 years, 1 month ago

Digonals of rectangle are equal If AC and BD intersect at point O OA is 7cm then it is half of AC so AC=7*2=14cm BD=AC so BD=14cm So AC is 14cm and BD is 14cm

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Difference between lateral surface area and total surface area

Posted by Vidhi Gallani 7 years, 1 month ago

CBSE > Class 08 > Mathematics

4 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Lateral surface area=(perimeter of base)×h ...Total surface area=sum of area of all faces of the object...

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Yogita Ingle 7 years, 1 month ago

The lateral surface area is the area of all sides excluding the area of the base.

Total surface area of any solid is the sum of areas of all the faces of the solid.

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Vaishnav Bhosale 7 years, 1 month ago

The lateral surface area is the area of all sides excluding the area of the base. Total surface area of any solid is the sum of areas of all the faces of the solid.

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Vidhi Gallani 7 years, 1 month ago

Somebody please tell me answer tomorrow is my exam of maths

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Divide 8z³+486z-729-108z² by - 9+2z and check whether second polynomial is factor of first or not

Posted by Mobassira Khan 7 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Shourya Pratap Sangwan 7 years, 1 month ago

Firstly...arrange the polynomials in standard form...(8z^3-108z^2+486z-729) and (2z-9)... Now, divide them using division method... Ans.=(4z^2-36z+81)..

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Arnav father is 49 years old he is 9 year older than 4 times arnav age setup equation to find Arnav age

Posted by Mayank Chandra 7 years, 1 month ago

CBSE > Class 08 > Mathematics