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    • Posted by Khushi Prajapati 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Saloni Chaudhary 3 years, 11 months ago

    Answer is 3,510

    1Thank You

    Sujal Shahi 3 years, 11 months ago

    ANSWER IS 3510

    1Thank You

    ANSWER

    • Posted by Anushka Tyagi 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Dhairya Sharma? 3 years, 11 months ago

    X = 5/3 and Y = 4/3

    13Thank You

    ANSWER

    • Posted by Mahima Sharma 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Manaal Thakur 3 years, 11 months ago

    Ratio of opposite side of hypotenuse

    0Thank You

    Ankit Raj 3 years, 11 months ago

    Reduction

    0Thank You

    Saloni Chaudhary 3 years, 11 months ago

    Sin theta +cos theta is sin 45 + cos 45= 1/root 2 +1/root 2 = 2/root 2 = root 2

    0Thank You

    Saumya Khushlani 3 years, 11 months ago

    1+2sincos in root

    0Thank You

    Shivam. Shivam. 3 years, 11 months ago

    1_2

    0Thank You

    ANSWER

    • Posted by Naman Rohilla 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Anandita 1 3 years, 11 months ago

    Polynomial:- 3x²-8x+2k+1 Let one zero be α Therefore second zero is 7α Now sum of zeroes= α+7α= -b/a => 8α = -(-8)/3 => 8α = 8/3 => α = 1/3 —1 Now product of zeroes =>α × 7α = c/a =>7α² =(2k+1)/3 Putting value of α from —1 =>7×(1/3)² = (2k+1)/3 =>7×1/9= (2k+1)/3 =>7/9=(2k+1)/3 =>21=18k+9 =>12=18k => k = 12/18 => k= 2/3

    2Thank You

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    • Posted by Rebecca Tegta 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Anushka Tyagi 3 years, 11 months ago

    Hence, the line x + y = 4 divides the line joining the points (-1, 1) and (5, 7) in the ratio of 1:2 internally

    0Thank You

    ANSWER

    • Posted by Abdul Hayee Op 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    [Vishal Kumar Paswan] [11] 3 years, 11 months ago

    Sorry , 2:1 .

    0Thank You

    [Vishal Kumar Paswan] [11] 3 years, 11 months ago

    Area of outer square = d² ( Since diameter of circle = Length of outer square . ) Diagonal of inner square = Diameter of circle = d . So , Area of inner square = (1/2)d² . Therefore , Area of Outer Square : Area of Inner Square = 1:2 .

    0Thank You

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    • Posted by Ruchi Kumari 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    [Vishal Kumar Paswan] [11] 3 years, 11 months ago

    0.2545454.... = 0.2(_54_) = x So , 10x = 2._54_ and 1000x = 254._54_ . Then , 990x = 252 , x = 252/990 x = 14/55 ; p+q = 69 Ans.

    0Thank You

    Saumya Khushlani 3 years, 11 months ago

    254/90

    0Thank You

    Mahantesha Gowda Gouda 3 years, 11 months ago

    P/q

    1Thank You

    ANSWER

    • Posted by Abhishek Kumar 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Bhavika Babal 3 years, 11 months ago

    19.2

    0Thank You

    ANSWER

    • Posted by Vasuki Vasuki 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Harshit Chourey 3 years, 11 months ago

    Hi

    4Thank You

    ANSWER

    • Posted by Shivam Saini 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Dhairya Sharma? 3 years, 11 months ago

    No solution

    0Thank You

    Sonal Maurya 3 years, 11 months ago

    No solution

    0Thank You

    Tapasya !! 3 years, 11 months ago

    This ques is actually wrong As If x and y are repeated then the sum of both can't differ

    0Thank You

    Madhuri Chauhan 3 years, 11 months ago

    no

    0Thank You

    Rathin Md 3 years, 11 months ago

    3

    3Thank You

    ANSWER

    • Posted by Kumar Namam 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Eti Ankit Lakra 3 years, 11 months ago

    1

    0Thank You

    ANSWER

    • Posted by Anagha R 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Sjkv Rjh 3 years, 11 months ago

    Let cost of book=b Pen=p This means... 5p+7b=410. ...(1). ×7 7p+5b=334. ...(2). ×5 49p+35b=2338 25p+35b=2050 By elimination method , we have P=12(cost of one pen) Therefore, Cost of 4 pens =4×p =4×12 =84 ans.

    1Thank You

    ANSWER

    • Posted by Yaksh Dahiya 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Yaksh Dahiya 3 years, 11 months ago

    Pls tell me

    1Thank You

    Rathin Md 3 years, 11 months ago

    Ss i now

    1Thank You

    ANSWER

    • Posted by Sanju Sanjana 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER
    3.3

    • Posted by Kanha Kumar 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Kunal Kumar 3 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Tapasya !! 3 years, 11 months ago

    By elimination method we have: 2x + y = 23 ...?➡️ 4x - y = 19 ...?➡️ ➡️ 6x = 42 ....? ➡️➡️➡️ From eq.3 we have x = 7 On substituting value of x in any of the eq: (let be in eq.2) 2x + y = 23➡️ {We know, x=7} 2(7)+y = 23➡️ 14+y = 23➡️ y = 23-14➡️ y = 9➡️➡️➡️ Now, we have values of both x and y {x=7; y=9}➡️➡️➡️ Final ques➡️ Find value of (5y-3x) and (y/x-2)➡️➡️➡️ Part-1➡️ 5y-3x {x=7; y=9}➡️ 5(9)-3(7)➡️ 45-21➡️ Ans [24]➡️ ➡️➡️➡️ Part-2➡️ y/x -2 {x=7; y=9)➡️ 9/7 -2➡️ 9/7 -14/7➡️ Ans [-5/7]➡️

    1Thank You

    Tapasya !! 3 years, 11 months ago

    By elimination method we have: 2x + y = 23 ...?➡️ 4x - y = 19 ...?➡️ ➡️ 6x = 42 ....?➡️➡️➡️➡️➡️➡️From eq.? we have x = 7➡️➡️➡️➡️➡️➡️➡️ On substituting value of x in any of the eq: (let be in eq.?) ➡️➡️➡️➡️➡️➡️ 2x + y = 23 {We know, x=7} 2(7)+y = 23 14+y = 23 y = 23-14 y = 9 ➡️➡️➡️➡️➡️➡️ Now, we have values of both x and y {x=7; y=9} ➡️➡️➡️➡️➡️➡️ Final ques Find value of (5y-3x) and (y/x-2) ➡️➡️➡️➡️➡️➡️ Part-1 5y-3x {x=7; y=9} 5(9)-3(7) 45-21 Ans [24] ➡️➡️➡️➡️➡️➡️ Part-2 y/x -2 {x=7; y=9) 9/7 -2 9/7 -14/7 Ans [-5/7]

    1Thank You

    Tapasya !! 3 years, 11 months ago

    By elimination method we have: 2x + y = 23 ...1 4x - y = 19 ...2 ➡️ 6x = 42 ....3 From eq.3 we have x = 7 On substituting value of x in any of the eq: (let be in eq.2) 2x + y = 23 {We know, x=7} 2(7)+y = 23 14+y = 23 y = 23-14 y = 9 Now, we have values of both x and y {x=7; y=9} Final ques Find value of (5y-3x) and (y/x-2) Part-1 5y-3x {x=7; y=9} 5(9)-3(7) 45-21 Ans [24] Part-2 y/x -2 {x=7; y=9) 9/7 -2 9/7 -14/7 Ans [-5/7]

    1Thank You

    ANSWER

    • Posted by Ankita Dhyani 4 years ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Dhairya Sharma? 3 years, 11 months ago

    Right

    0Thank You

    Harshit Chourey 3 years, 11 months ago

    Hello

    0Thank You

    ANSWER

    • Posted by Swetha Kp 4 years ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Sonal Maurya 3 years, 11 months ago

    Sum of zeros is -(-p)/1=p/1

    0Thank You

    Potnuru Chaitanya 3 years, 11 months ago

    Sum of zeroes is -(-p)/1 = p/1

    2Thank You

    Suhana S 4 years ago

    Sum zeroes is -p/1

    4Thank You

    ANSWER

    • Posted by Bishal Singha 4 years ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER
    Date sheet | OMR Sheet CBSE Sample Paper (2021-22) Class-10 Mathematics (Basic) Time Allowed: 90 minutes Maximum Marks: 40 General Instructions: The question paper contains three parts A, B and C. Section A consists of 20 questions of 1 mark each. Attempt any 16 questions. Section B consists of 20 questions of 1 mark each. Attempt any 16 questions. Section C consists of 10 questions based on two Case Studies. Attempt any 8 questions. There is no negative marking. SECTION A Section A consists of 20 questions. Any 16 questions are to be attempted A box contains cards numbered 6 to 50. A card is drawn at random from the box. The probability that the drawn card has a number which is a perfect square like 4,9….is In a circle of diameter 42cm, if an arc subtends an angle of 60o at the centre where = , then the length of the arc is cm 11 cm 22 cm 44 cm If sin = x and sec = y, then tan is xy The pair of linear equations y = 0 and y = -5 has One solution Two solutions Infinitely many solutions No solution A fair die is thrown once. The probability of even composite number is 0 1 8 chairs and 5 tables cost ₹ 10500, while 5 chairs and 3 tables cost ₹ 6450. The cost of each chair will be ₹ 750 ₹ 600 ₹ 850 ₹ 900 If cos + cos2 = 1, the value of sin2 + sin4 is -1 0 1 2 The decimal representation of will be Terminating Non-terminating Non-terminating and repeating Non-terminating and non-repeating The LCM of 23 32 and 22 33 is 23 33 23 33 22 32 The HCF of two numbers is 18 and their product is 12960. Their LCM will be 420 600 720 800 In the given figure, DE BC. Which of the following is true? The co-ordinates of the point P dividing the line segment joining the points A (1, 3) and B (4, 6) internally in the ratio 2:1 are (2, 4) (4, 6) (4, 2) (3, 5) The prime factorisation of 3825 is 3 52 21 32 52 35 32 52 17 32 25 17 In the figure given below, AD = 4cm,BD = 3cm and CB = 12 cm, then cot equals If ABCD is a rectangle , find the values of x and y X = 10, y = 2 X = 12, y = 8 X = 2, y = 10 X = 20, y = 0 In an isosceles triangle ABC, if AC = BC and AB2 = 2AC2, then the measure of angle C will be 30o 45o 60o 90o If -1 is a zero of the polynomial p(x) = x2 - 7x - 8, then the other zero is -8 -7 1 8 In a throw of a pair of dice, the probability of the same number on each die is The mid-point of (3p, 4) and (-2, 2q) is (2, 6). Find the value of p + q 5 6 7 8 The decimal expansion of will terminate after how many places of decimals? 1 2 3 4 SECTION B Section B consists of 20 questions of 1 mark each. Any 16 questions are to be attempted The perimeter of a semicircular protractor whose radius is ‘r’ is + 2r + r r r + 2r If P (E) denotes the probability of an event E, then 0< P(E) 1 0 < P(E) < 1 0 P(E) 1 0 P(E) <1 In ABC, ˂B=90o and BD AC. If AC = 9cm and AD = 3 cm then BD is equal to cm cm cm cm The pair of linear equations 3x + 5y = 3 and 6x + ky = 8 do not have a solution if K = 5 K = 10 K 10 K 5 If the circumference of a circle increases from 2 to 4 then its area ________ the original area Half Double Three times Four times Given that sin = ,then tan is equal to If x = 2sin2 and y = 2cos2 + 1 then x + y is 3 2 1 If the difference between the circumference and the radius of a circle is 37cm , = , the circumference (in cm) of the circle is 154 44 14 7 The least number that is divisible by all the numbers from 1 to 10 (both inclusive) 100 1000 2520 5040 Three bells ring at intervals of 4, 7 and 14 minutes. All three rang at 6 AM. When will they ring together again? 6:07 AM 6:14 AM 6:28 AM 6:25 AM What is the age of father, if the sum of the ages of a father and his son in years is 65 and twice the difference of their ages in years is 50? 40 years 45 years 55 years 65 years What is the value of (tan cosec) 2 -(sin sec)2 -1 0 1 2 The perimeters of two similar triangles are 26 cm and 39 cm.The ratio of their areas will be 2:3 6:9 4:6 4:9 There are 20 vehicles-cars and motorcycles in a parking area. If there are 56 wheels together, how many cars are there? 8 10 12 20 A man goes 15m due west and then 8m due north. How far is he from the starting point? 7m 10m 17m 23m What is the length of an altitude of an equilateral triangle of side 8cm? cm cm cm cm If the letters of the word RAMANUJAN are put in a box and one letter is drawn at random. The probability that the letter is A is Area of a sector of a circle is 1/6 to the area of circle. Find the degree measure of its minor arc. 90o 60o 45o 30o A vertical stick 20m long casts a shadow 10m long on the ground. At the same time a tower casts a shadow 50m long. What is the height of the tower? 30m 50m 80m 100m What is the solution of the pair of linear equations 37x + 43y = 123, 43x + 37y = 117? x = 2,y = 1 x = -1,y = 2 x = -2,y = 1 x = 1,y = 2 SECTION C Case study based questions Section C consists of 10 questions of 1 mark each. Any 8 questions are to be attempted. Case Study -1 Pacific Ring of Fire The Pacific Ring of Fire is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur. In a large horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and plate movements. https://commons.wikimedia.org/wiki/File:Pacifick%C3%BD_ohniv%C3%BD_kruh.png Fault Lines https://commons.wikimedia.org/wiki/File:Faults6.png Large faults within the Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Positions of some countries in the Pacific ring of fire is shown in the square grid below. Based on the given information, answer the questions NO. 41-45 The distance between the point Country A and Country B is 4 units 5 units 6 units 7 units Find a relation between x and y such that the point (x,y) is equidistant from the Country C and Country D x - y = 2 x + y = 2 2x - y = 0 2x + y = 2 The fault line 3x + y – 9 = 0 divides the line joining the Country P(1, 3) and Country Q(2, 7) internally in the ratio 3: 4 3: 2 2: 3 4: 3 The distance of the Country M from the x-axis is 1 units 2 units 3 units 5 units What are the co-ordinates of the Country lying on the mid-point of Country A and Country D? (1, 3) (2, ) (4, ) (, 2) Case Study -2 ROLLER COASTER POLYNOMIALS https://images.app.goo.gl/WfcM1aRTHijatvT27 Polynomials are everywhere. They play a key role in the study of algebra, in analysis and on the whole many mathematical problems involving them. Since, polynomials are used to describe curves of various types engineers use polynomials to graph the curves of roller coasters. Based on the given information, answer the questions NO. 46-50. If the Roller Coaster is represented by the following graph y = p(x) , then name the type of the polynomial it traces. Linear Quadratic Cubic Bi-quadratic The Roller Coasters are represented by the following graphs y=p(x). Which Roller Coaster has more than three distinct zeroes? If the Roller Coaster is represented by the cubic polynomial t(x) = px3 + qx2 + rx + s ,then which of the following is always true s 0 r 0 q 0 p 0 If the path traced by the Roller Coaster is represented by the above graph y = p(x), find the number of zeroes? 0 1 2 3 -3, -6, -1 2, -6, -1 -3, -1, 2 3, 1, -2

    • Posted by Udit Choubey 4 years ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Parth Chaturvedi 3 years, 11 months ago

    Khana Kya chahte ho??

    0Thank You

    Vishu Singh 3 years, 11 months ago

    .............

    0Thank You

    ANSWER

    • Posted by Shreyas Kaddi 4 years ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Adarsh Dwivedi 4 years ago

    10,000.05004.........

    0Thank You

    Shreyas Kaddi 4 years ago

    Tell pls

    2Thank You

    ANSWER

    • Posted by Moksh Yadav 4 years ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Abhay Khare 4 years ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Ayushi Singh 3 years, 11 months ago

    77/8 cm²

    1Thank You

    Raghav Sharma 4 years ago

    Solution: Let the radius of the circle be 'r' Thus, the circumference C = 2πr Therefore, r = C/2π A quadrant of a circle means one of the four equal parts. Therefore, the area of a quadrant = 1/4 × Area of a circle = 1/4 × πr2 Circumference (C) = 22 cm Therefore, radius (r) = C/2π = 22/(2 × 22/7) = (22 × 7)/(2 × 22) = 7/2 cm Therefore, the area of a quadrant = 1/4 × πr2 = 1/4 × 22/7 × 7/2 × 7/2 = 77/8 cm2

    3Thank You

    Devstar Bro 4 years ago

    77/8

    2Thank You

    ANSWER

    • Posted by Ridhima Gola 4 years ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Pragati Singh 3 years, 11 months ago

    Sum of angle x and y is 90°

    0Thank You

    Kuldeep Rajbhar 4 years ago

    sec(x) = cosec(y)

    0Thank You

    ANSWER

    • Posted by K L 4 years ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Navneet Singh 4 years ago

    ਠੀਕ ਹੈ ਜੀ ?

    5Thank You

    ANSWER

    • Posted by Harsh Jain 4 years ago

    CBSE > Class 10 > Mathematics
    • 4 answers

    Gungun Kumari 4 years ago

    (Cos+sin)^2=5/2^2 Cos^2+2cos.sin+sin^2=25/4 Cos^2+sin^2=25/4-2 Cos^2+sin^2=17/4

    0Thank You

    Abhinav Goyal 4 years ago

    cos^2+sin^2=1

    2Thank You

    Mansi Sharma 4 years ago

    Please help I want answers of this chapter

    4Thank You

    Mansi Sharma 4 years ago

    Chapter 6 triangle

    5Thank You

    ANSWER

    • Posted by Vaishnavi Babu 4 years ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Pinki Sikarwar 4 years ago

    Answer is 3

    0Thank You

    Vipin Kumar Shrivastav 4 years ago

    -2 is the common difference of the given AP

    0Thank You

    Rinku Sheoran 4 years ago

    2 I think.

    0Thank You

    ANSWER

    • Posted by Yash Kumar 4 years ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Gomathi Suresh 4 years ago

    3

    0Thank You

    Pratham Dhama 4 years ago

    X axis is 3 units

    1Thank You

    Palak Gaur 4 years ago

    3 units

    3Thank You

    Ankur Yadav 4 years ago

    3 units

    4Thank You

    Shubhanshu Sinha 4 years ago

    Distance from x axis is 3

    3Thank You

    ANSWER
    4+8

    • Posted by Ra Ali 4 years ago

    CBSE > Class 10 > Mathematics
    • 5 answers

    Rinku Sheoran 4 years ago

    12

    0Thank You

    Asad Khan 4 years ago

    12

    0Thank You

    Yash Kumar 4 years ago

    12

    0Thank You

    Gaytri Arya 4 years ago

    12

    0Thank You

    V Dharani 4 years ago

    12

    0Thank You

    ANSWER

    • Posted by Priya Sharma Parasher 4 years ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Angela Bow 3 years, 11 months ago

    Idk ??

    0Thank You

    ANSWER

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