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Newbie

## The marks obtained by 100 students in an examination are given below : Find the mean marks of the students.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number 30/2/1 Question number – 20

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Newbie

## A solid is in the form of a cylinder with hemispherical ends. The total height of the solid is 20 cm and the diameter of the cylinder is 7 cm. Find the total volume of the solid. (Use Π = 22/7 )

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CBSE 10th Class past year question paper Year 2019 SET 1, Code number 30/2/1 Question number – 19

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Newbie

## In Figure 5, ABCD is a square with side 2 √2 cm and inscribed in a circle. Find the area of the shaded region. (Use π = 3·14)

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 18 (b)

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Newbie

## In Figure 4, a square OABC is inscribed in a quadrant OPBQ. If OA = 15 cm, find the area of the shaded region. (Use π = 3·14)

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 18 (a)

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Newbie

## Evaluate : { ( 3 sin 43° ) / ( cos 47° ) }² – { (cos 37° cosec 53°) / ( tan 5° tan 25° tan 45° tan 65° tan 85° )}

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 17

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Newbie

## Find the ratio in which the line x – 3y = 0 divides the line segment joining the points (– 2, – 5) and (6, 3). Find the coordinates of the point of intersection.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 16

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Newbie

## 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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Newbie

## 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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Newbie

## 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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Newbie

## 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)