q: How many terminating zeroes E does 200! have?
Options:
(A) 40
(B) 48
(C) 49
(D) 55
(E) 64
a: 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).

question: If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 6 years the amount to be paid is?
Options:
(A) 3377
(B) 2688
(C) 2688
(D) 9490
(E) 1268
answer: Stream of consciousness: A = 7500(26/25)^6 = 9490 The answer is (D).

q: The average of five results is 46 and that of the first four is 45. The fifth result is?
Options:
(A) 22
(B) 02
(C) 78
(D) 50
(E) 18
a: Stream of consciousness: 5 * 46 4 * 45 = 50 The answer is (D).

question: A can do a work in 9 days and B can do the same work in 27 days. If they work together, in how many days will they complete the work?
Options:
(A) 6 3/4 days
(B) 7 3/4 days
(C) 5 3/4 days
(D) 6 1/4 days
(E) 6 2/4 days
answer: Stream of consciousness: One day's work of A and B = 1/9 + 1/27 = (3+1)/27 = 4/27 So, the time taken to complete the work is 6 3/4 days. The answer is (A).

q: he speed of a train is 90 kmph. What is the distance covered by it in 10 minutes?
Options:
(A) 25 kmph
(B) 15 kmph
(C) 17 kmph
(D) 95 kmph
(E) 14 kmph
a: Stream of consciousness: 90 * 10/60 = 15 kmph The answer is (B).

q: 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%
a:
Stream of consciousness: P = (P*30*R)/100
R = 3 1/3% The answer is (A).