108 km/h ki ausat gati se chalne wali ek 280 m. lambi train 12 sec me ek platform ko par karati hai ek aadmi usi platform ko 10 sec. me par krta hai aadmi ki gati kya hai
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Step-by-step explanation:
speed=108km/h
length =280m
platform=12-10sec
=2sec
speed=45×5/18
=30km/h
length=280/2=30
=140=30
=110
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the speed of man is 36m/sec
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