A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 18 seconds what is the length of the platform in meters
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Answer:
THE ANSWER IS 240 m
Step-by-step explanation:
Speed of the train in metres/sec = 72000/3600 = 20
Distance travelled by train to cross the platform = 30 * 20 = 600 = Length of train + Length of platform
Distance travelled by train to cross the man = 18 * 20 = 360 = Length of train
Length of platform = 600 - 360 = 240
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Answered by
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Step-by-step explanation:
speed of train =72×5/18km/h
=20m/s
length of train=20×30 sec.=60 m
required length =(time taken by train × the speed of train )-length of the train
=18×20-60
=360-60
=300 m
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