Question

A train 100 metres long passes a bridge at the rate of 72 km.lhr. in

25 seconds, what is the length of the bridge​

Answer 1

Distance=length of the train +length of bridge=100+X

distance=speed×time

72kmph=72×5/18m/s=20m/s

100+X=20×25=500

X=400m

Answer 2

Answer:

hey here is your answer:

speed =72×1000/3600 in m/s

speed=20m/s

speed =distance/time

20=d/25

20×25=d

500m=distance