Question

A train 150m long passes a
man, running at 5km/hr in the
Same direction in which the
train is going , in 10 seconds
The speed of the train is?​

Answer 1

Answer:

$speed \: of \: train \: related \: to \: man \: = \frac{125}{10}$

$\frac{125}{10} = \frac{25}{2}$

$\frac{25}{2} \times \frac{18}{5} = 45$

$let \: the \: speed \: of \: train \: be \: s$

$s - 5 = 45$

$s = 45 + 5 = 50 \: km \: hr$