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Deepak BoraNewbie

Asked: August 3, 2020In: CBSE

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.

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

Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

Find the mode of the following distribution

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

Deepak BoraNewbie

Asked: July 30, 2020In: CBSE

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

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

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

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)

Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

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.

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

Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

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.

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

Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

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.

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

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Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

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

Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

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

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

Deepak BoraNewbie

Asked: July 26, 2020In: CBSE

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

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

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