Question

A moving train passes a platform 50 m long in 14s and a lamp-post in 10s. The speed of the train is?​

Answer 1

Answer:

12.5 m/s

let the length of train be x m.

now equate the speed in both conditions:-

x+50/14 = x/10

10x+500=14x

x=125m.

so, speed of train =125/10 =12.5 m/s