Question

A train 100 metres long takes 6 seconds to cross a man walking at 5 kmph in a direction opposite to that of the train. Find the speed of the train

Answer 1

hope it will help you a lot....

Answer 2

Answer:

55 km/hr.

Step-by-step explanation:

Let the speed of the train be x km/hr

Now we are given that a man walking at 5 kmph in a direction opposite to that of the train.

Relative speed of train = x+5 kmph = $(x+5) \times \frac{5}{18} m/s$

Distance = 100 m

Time = 6 seconds

$Time = \frac{Distance}{Speed}$

$6= \frac{100}{(x+5)\times \frac{5}{18}}$

$x=55$

Hence the speed of the train is 55 km/hr