a trian of length 150m passes. a telegraph pole in 10s . find the speed of the train in km/hr.
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speed =distance÷time
therefore, speed=150÷10
=15m/s
in converting 15m/s into km/h
we multiply it by 18/5
therefore, 18×3
=54km/h
therefore, speed=150÷10
=15m/s
in converting 15m/s into km/h
we multiply it by 18/5
therefore, 18×3
=54km/h
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