Question

A train 135 meter long takes 5 sec to cross a man running at 15 kmph in a direction opposite to that of the train. Find the speed of the train. A) 17.1 sec b) 17.2 sec c) 17.4 sec d) 17.3 sec

Answer 1

Speed of the train = Distance / Time
= 135 / 5 m/sec
= 135/5 * 18/5
= 97.2 km / h
Relative speed of train = x - 15