Multiple Choice Questions (MCQ) on Mathematics
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31-A reduction in the price of apples enables a person to purchase 3 apples for Re. 1 instead of Rs. 1.25. The percent reduction in price is
(A) 20%
(B) 25%
(C) 30%
(D) 35%
32-If a+b:b+c:c+a = 6:7:8 and a+b+c = 14, then value of ‘c’ is
(A) 6
(B) 7
(C) 8
(D) 14
33-A hall, 20 m long and 15 m broad, is surrounded by a verandah of uniform width of 2.5 m. The cost of flooring the verandah at Rs. 3.50 per square metre is
(A) Rs. 500
(B) Rs. 600
(C) Rs. 700
(D) Rs. 800
34-If √5 = 2.24 and √6 = 2.45, then the value of (√2/√3)+(√5/√6)=
(A) 1.37
(B) 1.57
(C) 1.73
(D) 1.75
35-(16)0.16x(16)0.04x(2)0.2 is equal to
(A) 1
(B) 2
(C) 4
(D) 16
36-If 257.5 x 52.5 / 1251.5 = 5x, then the value of ‘x’ is
(A) 16
(B) 17.5
(C) 8.5
(D) 13
37-The value of [(1/5)/(1/5) of 1/5]/[(1/5) of (1/5) / (1/5)] is
(A) 1
(B) 25
(C) 1/25
(D) 125
38-A fraction is such that if the numerator is multiplied by 3 and denominator is reduced by 3, we get 18/11, but if the numerator is increased by 8 and the denominator is doubled, we get 2/5. Then the fraction is
(A) 8/15
(B) 12/25
(C) 11/21
(D) 9/28
39-If two numbers are in the ratio of 5:8 and 9 is added to each, the ratio becomes 8:11. Find the sum of the numbers.
(A) 39
(B) 49
(C) 64
(D) 19
40-On selling a pen for Rs. 18, a man loses 1/10 of its cost price. The cost price of the pen is
(A) Rs. 16.20
(B) Rs. 19.80
(C) Rs. 20
(D) Rs. 25
41-Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is
(A) 15
(B) 16
(C) 18
(D) 25
42-56 men can complete a piece of work in 24 days. In how many days can 42 men complete the same piece of work?
(A) 18
(B) 32
(C) 98
(D) 48
43-A train running at 36 km/h takes 10 s to pass a telegraph pole. How long would it take to cross a platform 110m long?
(A) 24 s
(B) 31 s
(C) 21 s
(D) 33 s
44-The perimeter of a rectangle is 28 m, whereas its area is 48 m2. What is the length of its diagonal?
(A) 5 m
(B) 10 m
(C) 12 m
(D) 12.5 m
45-The length of a rectangle is 1 cm more than its width. Its perimeter is 14 cm. The area of the rectangle is
(A) 16 cm2
(B) 14 cm2
(C) 12 cm2
(D) 10 cm2
ANSWERS:
31-(A), 32-(A),33-(C), 34-(C), 35-(B), 36-(D), 37-(A), 38-(B), 39-(A), 40-(C), 41-(B), 42-(B), 43-(C), 44-(B), 45-(C),
