In digging a hole 10 m * 10 m * 100 m the volumes of the sand extracted will be?
Options:
(A) 100 cu.m
(B) 1000 cu.m
(C) 10000 cu.m
(D) 2000 cu.m
(E) 4000 cu.m
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10 * 10 * 100 = 10000 So the answer is: (C).
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The speed of a car is 90 km in the first hour and 42 km in the second hour. What is the average speed of the car?
Options:
(A) 89 kmph
(B) 92 kmph
(C) 75 kmph
(D) 65 kmph
(E) 66 kmph
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S = (90 + 42)/2 = 66 kmph So the answer is: (E).
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In a school of 850 boys, 46% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?
Options:
(A) A) 136
(B) B) 627
(C) C) 153
(D) D) 721
(E) E) 159
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46 + 28 + 10 = 84%
100 84 = 16%
850 * 16/100 = 136 So the answer is: (A).
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