Q: In what time will a railway train 20 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) 2 sec Let's give some random thoughts before answering.
T = 20/36 * 18/5 = 2 sec
Therefore, the answer is (E).