Question

Answer this guys!!!!
A train moving with speed of 72 km/hr crosses a bridge of length 200 m in 30 seconds. What is the length of train?

Answer 1

Explanation:

Speed= 72 kmph = 72×10/36 = 20 m/s

Distance covered = 200+ x where x is the length of the train

Time = 30 s

(200+x)/30 = 20

200+x = 30×20 = 600 m

x = 600-200= 400m

The length of the train is 400m...

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Answer 2

Answer:600m

Explanation:speed of the train=72 km/hr=1200m/min......the train travels 200m in 30 sec=1/2min.....therefore lenght of the the train=1200×1/2=600m