# CBSE [Delhi]_X_Mathematics_2013_Set I

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• Q1

Marks:1

Option C is the correct answer.

• Q2

Marks:1

Option B is the correct answer.

• Q3

In figure, a circle with centre O is inscribed in a quadrilateral ABCD such that, it touches the sides BC, AB, AD and CD at points P, Q, R and S respectively. If AB=29cm, AD=23cm, B=90° and DS= 5cm, then the radius of the circle (in cm.) is:

(A)    11                                 (B) 18
(C) 6                                    (D) 15

Marks:1

Option A is the correct answer.

Given:
AB, BC, CD and AD are tangents to the circle with centre O at Q, P, S and R respectively.

AB = 29 cm, AD = 23, DS = 5 cm and B = 90°

Construction: Join PQ.

• Q4

The angle of depression of a car, standing on the ground, from the top of a 75m high tower, is 30°. The distance of the car from the base of the tower (in m.) is:
(A)
253
(B)
503
(C)
753
(D) 150

Marks:1

Option C is the correct answer.

• Q5

Marks:1

Option A is the correct answer.

• Q6

Marks:1

Option C is the correct answer.

• Q7

Marks:1

Option C is the correct answer.

• Q8

Marks:1

Option B is the correct answer.

• Q9

Marks:2

• Q10

How many three-digit numbers are divisible by 7?

Marks:2