CBSE X

CBSE X Maths Set - 8

Question 1

The HCF and LCM of p(x) and q(x) are 1 and 2  respectively. If 3 then q(x) = ____.
A) 4
B) 5
C) 6
D) 7

Question 2

The ratio of one polynomial to another polynomial is called a rational expression. If the numerator of a rational expression is a quadratic polynomial with the zeroes 3 and -2 and the denominator is a quadratic polynomial with the zeroes 19  and 3, then the rational expression is ____.
A) 21
B) 22
C) 23
D) 24

Question 3

A and B each have certain number of oranges. A says to B, "if you give me 10 of your oranges, I will have twice the number of oranges left with you". B replies, "if you give me 10 of your oranges, I will have the same number of oranges as left with you". The number of oranges with A and B are ____.
A) 40 and 80
B) 30 and 50
C) 70 and 30
D) 70 and 50

Question 4

If 42 then the values of 43  are 44
A) True
B) False

Question 5

If one bulb is taken out at random from a box of 600 electric bulbs containing 12 defective bulbs, then the probability of getting a non-defective bulb is ____.
A) 0.78
B) 0.65
C) 0.98
D) 0.85

Question 6

The following graph represents the more than ogive of the given frequency distribution.

52

53

A) True
B) False

Question 7

A container, opened from the top is made up of a metal sheet, is in the form of a frustum of a cone of height 12 cm with the radii of its lower and upper ends as 6 cm and 16 cm, respectively. The cost of the milk which can completely fill the container at the rate of Rs. 15 per litre is approximately equal to ____.
(Use 56 )

A) Rs. 74.15
B) Rs. 75.25
C) Rs. 73.05
D) Rs. 73.65

Question 8

The angle of a sector of a circle of radius 7 cm is 30o. The area of the corresponding major sector is ____ cm2.
A) 63
B) 64
C) 65
D) 66

Question 9

A person standing on the bank of a river observes that the angle of elevation of the top of a tree standing on the opposite bank is 60o. When he moves 40 metres away from the bank, he finds the angle of elevation to be 30o. The height of the tree and the width of the river are respectively ____.
A) 35.64 m and 10 m
B) 37.64 m and 30 m
C) 39.64 m and 20 m
D) 34.64 m and 20 m

Question 10

89  up to 90  terms = ____.
A) 92
B) 93
C) 94
D) 95