Question

A train of certain length travelling with a uniform speed of 36 km/h crosses a bridge of 600 m in 80 s . Find length of the train.

Answer 1

let length of train 'x'
total length = 600 + x
change speed in m/s i.e. 36*(5/18)=10
since distance /speed =time
length of train is (600+x)/10=80
x=800-600
x=200