Question

a train 350 meters long crosses a an electric pole in 28 second.find the speed of the train in km/hr.

Answer 1

Distance=350m 
time=28s
speed = distance/time
speed=350/28
= 25/2
=25/2×18/5
=45km/h
hope it helps u

Answer 2

D = 350 m = 350/1000 km

Time = 28 sec = 28 / 3600 h


Speed= distance/ time = 350 /1000 × 3600/28  = 45 km/h

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Hope it helps

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