Question

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

Answer 1

Speed=36kmph=36×5/18m/s=10m/s

Length of bridge=600m

length of train=X m

Time=80sec

Distance= length of bridge + length of =(600+x)m

so distance=speed×time

600+x=10×80=800

so X=800-600=200

length of train =200 m

or 0.2 Km

Answer 2

let length of is 'x'

so 600 + x= 10 ×800

x= 200 m

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