Question

Two trains run at 48 km/h and 54km/h in the same direction. The

length of second train is 120m and time taken by them to cross each other

is 150 seconds from the time they meet. Find the length of the first train.​

Answer 1

Answer:

Relative speed of trains = 40 - 22 = 18 km/hr ∵ 18 km/hr = 5 m/sec

Let

the length of second train = L m Time taken to cross each other

=

5

L+125

∴

5

L+125

=60⇒L=175 m