Question

A train travelling at the speed of 66 kmph crosses a 300 meter long platform in 24 second. how long was the train

Answer 1

let the length of the train be x, then total distance travelled by train to cross the platform= 300+x

also, speed of train= 66 kmph=55/3 mps

speed=distance/time so distance=time*speed

300+x=24*55/3

300+x=440

so x=140m