Question

A train having a length of
240
metre passes a post in
24
seconds. How long will it take to pass a platform having a length of
650
metre?

Answer 1

train has a speed of 10 m/s so it will take 65 seconds to pass the platform

Answer 2

Hey there! Warm welcome!
The train can travel 240 m in 24 seconds.
The train can travel 1 meter in 24/240 seconds.
Therefore, the train can travel 650 meters in6 (24/240*650)seconds
=>650/10=65 seconds.

This is the unitary method system.

HOPE THIS HELPS!!