A train 210 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 : Choose the most appropriate option:
A) 28 sec
B) 32 sec
C) 36 sec
D) 38 sec
E) 40 sec
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 =(210×2/15) sec=28 sec   28 secNSWER :28 sec
<result>A</result>
A train 210 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 :