question:How many seconds will a train 100 meters long take to cross a bridge 170 meters long if the speed of the train is 36 kmph?
Options:
(A) 54 sec
(B) 65 sec
(C) 25 sec
(D) 45 sec
(E) 27 sec
answer:(E)
Stream of consciousness:D = 100 + 170 = 270
S = 36 * 5/18 = 10 mps
T = 270/10 = 27 sec

question:The average of first 16 even numbers is?
Options:
(A) 19
(B) 18
(C) 16
(D) 11
(E) 17
answer:(E)
Stream of consciousness:Sum of 16 even numbers = 16 * 17 = 272
Average = 272/16 = 17

question:Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is
Options:
(A) 5/9
(B) 5/12
(C) 1/36
(D) 7/12
(E) 4/9
answer:
(B)
Stream of consciousness:Using question number 11 and 12, we get the probability as
1 - (1/36 + 5/9) = 5/12