Question

find the length of the train if it crosses a pole in 15 seconds and with the same speed it crosses a 100 m long plateform in 30 seconds​

Answer 1

Answer:

Let the length of the train be x m. Then,

x/15 =   100+x/25

⇒25x=1500+15x

⇒10x=1500

⇒x=150

Hence, the length of the train is 150m

Please consider the slash as fraction and division and hope you will find it useful and easy... if you like my answer please thank and rate...