q: 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
a: 46 + 28 + 10 = 84%
100 84 = 16%
850 * 16/100 = 136 The answer is (A).
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q: An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?
Options:
(A) 180
(B) 345
(C) 234
(D) 488
(E) 234
a: Angle traced by the hour hand in 6 hours = (360)/12x 6 = 180. The answer is (A).
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q: A train 480 m in length crosses a telegraph post in 16 seconds. The speed of the train is?
Options:
(A) 22 kmph
(B) 108 kmph
(C) 54 kmph
(D) 71 kmph
(E) 88 kmph
a: S = 480/16 * 18/5 = 108 kmph The answer is (B).
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q: If x and y are unique prime integers, which of the following must be odd?
Options:
(A) xy^2
(B) 2x+2y
(C) 2x2y
(D) 2x/2y
(E) xy
a:
Any number multiplied by 2 has to be an even number henc The answer is (E).
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