ncert class Archives - Ask TrueMaths!

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A hemispherical tank, full of water, is emptied by a pipe at the rate of 25/7 litres per second. How much time will it take to empty half the tank if the diameter of the base of the tank is 3 m?

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This is one of the most important question from the cbse board exam point of view because in 2012 and ...Read more

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

Diagonals of a trapezium PQRS intersect each other at the point O, PQ II RS and PQ = 3RS. Find the ratio of the areas of triangles POQ and ROS.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 14 (b)

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

Two right triangles ABC and DBC are drawn on the same hypotenuse BC and on the same side of BC. If AC and BD intersect at P, prove that AP × PC = BP × DP.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 14 (a)

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

Using Euclid’s Algorithm, find the HCF of 2048 and 960.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 13 (b)

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

Prove that 2 + 5 √3 is an irrational number, given that √3 is an irrational number

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 13 (a)

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

Find the mode of the following frequency distribution :

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CBSE 10th Class past year question paper Year 2019 SET 1 , Code Number – 30/2/1 Question number – 12

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

Sumit is 3 times as old as his son. Five years later, he shall be two and a half times as old as his son. How old is Sumit at present ?

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 11 (b)

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

The larger of two supplementary angles exceeds the smaller by 18°. Find the angles.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 11 (a)

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

Find the value(s) of k so that the pair of equations x + 2y = 5 and 3x + ky + 15 = 0 has a unique solution.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 10

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

The probability of selecting a blue marble at random from a jar that contains only blue, black and green marbles is 1/5 . The probability of selecting a black marble at random from the same jar is 1/4 . If the jar contains 11 green marbles, find the total number of marbles in the jar.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 9

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