A train 165 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?

Question: A train 165 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?

Solution:
Speed of train relative to man =(60 + 6)km/hr = 66km/hr
=66 × 5/18m/sec
=55/3 m/sec

∴Time taken to pass the man =165 × 3/55 sec = 9 sec