arithmetic - a train 150 m long is running with a a speed of 68 kmph in what time will it pass a man who is running at 8 kmph in the same direction in which the train is going - skillgun

Speed of the train relative to man =( 68 - 8 )
= 60 Kmph
= 60 x 5 / 18
=50/3 m/sec.
Time taken by it to cover 150 m at (50 /3)m/sec = (112 - 50)kmph
= (150 x 3/50)sec
= 9 sec.