q: A 125 meter long train crosses a man standing on the platform in 5 sec. What is the speed of the train?
Options:
(A) 229
(B) 108
(C) 278
(D) 126
(E) 90
a: Stream of consciousness: S = 125/5 * 18/5 = 90 kmph The answer is (E).

question: 45 pupil,out of them 12 in debate only and 22 in singing only.then how many in both?
Options:
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13
answer: Stream of consciousness: The intersection for two = 45 - 12 - 22 = 11 play both games. The answer is (C).

q: What is the least number should be added to 1056, so the sum of the number is completely divisible by 29?
Options:
(A) 17
(B) 27
(C) 37
(D) 47
(E) 57
a: Stream of consciousness: (1056 / 29) gives remainder 12
17 + 12 = 29, So we need to add 17 The answer is (A).

question: A marble shop contains 5 blue marbles, 5 red marbles, and 5 green marbles. If 2 marbles are purchased at random from the shop, what is the probability that the 2 marbles will be of the red?
Options:
(A) 5/15
(B) 2/21
(C) 20/15
(D) 5/210
(E) 4/14
answer: Stream of consciousness: Of the 15 marbles we are wanting red:
Probability of choosing 1st red marble: 5/15
Probability of Choosing 2nd red marble: 4/14
Multiply and you get 20/210 simplified to 2/21 The answer is (B).

q: The speed of a boat in still water is 90kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?
Options:
(A) 40, 68 kmph
(B) 110, 70 kmph
(C) 90, 60 kmph
(D) 40, 60 kmph
(E) 20, 60 kmph
a: Stream of consciousness: Speed downstream = 90 + 20 = 110 kmph
Speed upstream = 90 - 20 = 70 kmph The answer is (B).

q: There are 10 female and 15 male in a work place. In how many ways can a person can be selected?
Options:
(A) 20
(B) 15
(C) 18
(D) 40
(E) 25
a:
Stream of consciousness: No of ways = 10+ 15 = 25 The answer is (E).