question: A train 110 meters long completely crosses a 280 meters long bridge in 38 seconds. What is the speed of the train is?
Options:
(A) 32
(B) 45
(C) 40
(D) 66
(E) 09
answer: Stream of consciousness: S = (110 + 280 /38 = 390/38 * 18/5 = 40 The answer is (C).
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question: How many terminating zeroes E does 200! have?
Options:
(A) 40
(B) 48
(C) 49
(D) 55
(E) 64
answer: Stream of consciousness: You have 40 multiples of 5, 8 of 25 and 1 of 125. This will give 49 zeros. The answer is (C).
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question: At what rate percent on simple interest will a sum of money double itself in 30 years?
Options:
(A) 3 1/3%
(B) 3 1/7%
(C) 3 9/3%
(D) 3 5/3%
(E) 3 3/3%
answer: Stream of consciousness: P = (P*30*R)/100
R = 3 1/3% The answer is (A).
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question: Find the wrong number below mentioned series
11,150,280,560,800
Options:
(A) 800
(B) 560
(C) 280
(D) 150
(E) 11
answer:
Stream of consciousness: 11 is the only prime number or odd number in the series. The answer is (E).
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