A train 150 metres long is moving at a speed of 25 kmph. It will cross a man coming from the opposite direction at a speed of 2 km per hour in :
Options:
A) 20 sec	B) 32 sec	C) 36 sec	D) 38 sec	E) 40 sec

Rationale: relative speed = ( 25 + 2 ) km / hr = 27 km / hr = ( 27 × 5 / 18 ) m / sec = 15 / 2 m / sec . time taken by the train to pass the man = ( 150 × 2 / 15 ) sec = 20 sec answer : a
Answer: A