A train is 450 mts long. if it runs 54 kmph, then how many seconds does it take to travel its own length?
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speed in m/sec=54×5/18
=15m/sec
distance =speed × time
450= 15×t
t= 30 sec
=15m/sec
distance =speed × time
450= 15×t
t= 30 sec
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