Discussion Forum

A train 110 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 ?

Answer:

Explanation:

Speed of train relative to man $=(60+6)$ km/hr $=66$ km/hr

$=\left(66\times\frac{5}{18}\right)$ m/sec $=\left(\frac{55}{3}\right)$ m/sec.

$\therefore$ Time taken to pass the man $=\left(110\times\frac{3}{55}\right)$ sec = 6 sec.