Question

a train 650 metres long is running with a speed of 90 kilometre per hour in what time will it cross a bridge 100 metre long​

Answer 1

Answer:

Train will take 12.1seconds to cross the bridge.

Step-by-step explanation:

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Answer 2

Answer:

30 s

Step-by-step explanation:

distance = 650+100=750m

speed =90×1000/60×60m/s

Time = distance/speed

= 750/90×5/18 =750×18/90×5=30s