In what time will a railway train 50 m long moving at the rate of 36 kmph pass a telegraph post on its way?
Options:
(A) 5 sec
(B) 4 sec
(C) 3 sec
(D) 6 sec
(E) 1 sec OK. Let's think. Some random thoughts first:
user
T = 50/36 * 18/5 = 5 sec The answer: (A).
assistant