Question

A train 110 metres long is running with a speed of 60 km/hr. In what time it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?

• A. 5 sec
• B. 6 sec
• C. 7 sec
• D. 10 sec

Answer 1

Answer: (B)

6 sec

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

$=(66\times \frac{5}{18})m/sec$

$=\left(\frac{55}{3}\right)m/sec$

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