# CBSE [All India]_X_Mathematics_2010_Set I

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• Q1

Marks:1

• Q2

The slant height of the frustum of a cone is 5 cm. If

the difference between the radii of its two circular

ends is 4 cm, find the height of the frustum.

Marks:1

• Q3

A die is thrown once. What is the probability of getting a number greater than 4?

Marks:1

• Q4

In figure, CP and CQ are tangents from external points C to a circle with centre O. AB is another tangent which touches the circle at R. If CP = 11 cm and BR = 4 cm, find the length of BC.

Marks:1

From the given figure we have
CP = CQ = 11cm and
BR = 4cm = BQ
BC = CQ – BQ
= 11 – 4
= 7 cm.

• Q5

In the given figure, DE is parallel to BC in triangle ABC such that BC = 8 cm , AB = 6 cm and DA = 1.5 cm. Find DE.

Marks:1

• Q6

Marks:1

• Q7

What is the distance between the points A(0, c) and

B(0, -c)?

Marks:1

• Q8

Marks:1

• Q9

Marks:1

• Q10

If the sum of the first q terms of an A.P. is 2q + 3q2,

what is its common difference?

Marks:1