Newbie

## The radius and height of a solid right-circular cone are in the ratio of 5 : 12. If its volume is 314 cm³ , find the total surface area.

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Proportion of  radius and height of a solid right-circular cone is given; by using relation of volume and surface area ...Read more

Newbie

## Find the mode of the following distribution

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number  – 30/5/1 Question Number –  25Read more

Newbie

## Check whether 12∧n can end with the digit 0 for any natural number n. 12∧n = (2 × 2 × 3)∧n

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number  – 30/5/1 Question Number –  22 ...Read more

Newbie

## How many terms of the Arithmetic Progression 45, 39, 33, … must be taken so that their sum is 180 ? Explain the double answer.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 29 (b)

Newbie

## Draw two concentric circles of radii 2 cm and 5 cm. Take a point P on the outer circle and construct a pair of tangents PA and PB to the smaller circle. Measure PA.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number-30/2/1 Question number – 26 (b)

Newbie

## Amit, standing on a horizontal plane, finds a bird flying at a distance of 200 m from him at an elevation of 30°. Deepak standing on the roof of a 50 m high building, finds the angle of elevation of the same bird to be 45°. Amit and Deepak are on opposite sides of the bird. Find the distance of the bird from Deepak.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 24

Newbie

## If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, then prove that the other two sides are divided in the same ratio.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code number 30/2/1 Question number – 23

Newbie

## Write all the values of p for which the quadratic equation x² + px + 16 = 0 has equal roots. Find the roots of the equation so obtained.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number 30/2/1 Question number – 22

Newbie

## Find the zeroes of the quadratic polynomial 7y² – 11/3 y – 2/3 and verify the relationship between the zeroes and the coefficients.

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 21 (b)

Newbie

## For what value of k, is the polynomial f(x) = 3x∧4 – 9x∧3 + x∧2 + 15x + k completely divisible by 3x∧2 – 5 ?

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CBSE 10th Class past year question paper Year 2019 SET 1, Code Number- 30/2/1 Question number – 21 (a)