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 Random thoughts:
D = 100 + 170 = 270
S = 36 * 5/18 = 10 mps
T = 270/10 = 27 sec The final answer: (E).