Question

Two trains running in opposite directions cross a man standing onthe platform in 27 seconds and 17 seconds respectively and they crosseach other in 23 seconds. the ratio of their speeds is:

Answer 1

Let the speeds of the two trains be x m/sec and y m/sec respectively.

Then, length of the first train = 27x metres,

and length of the second train = 17y metres.

27x + 17y= 23x+ y

 27x + 17y = 23x + 23y

4x = 6y

x=3, y=2
first train=81m
second train=34m
i hope this will help you