a train of length 250 m takes 50 s to cross 350 m long platfrom. how much time the some train will take to cross 230 m long platform?
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Distance=250+350
=600m
Time=50s
Speed=distance÷time
=600÷50=12m/s
, New distance=250+230=480m
Speed=12m/s
:- time=distance÷speed
=480÷12=40 seconds
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