Question

If the length of train is 150 meters and it crosses a pole in 12 seconds then the speed of the train in km/hr is?

Answer 1

speed=distance upon time

of 150 upon 12

=12.5

now to convert m per s into kmph,we will multiply by 18 and then divide by 5

so,final answer =45

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Answer 2

Length of train = 150 meters

Time taken to crosses a pole = 12 seconds

speed= distance ÷time

speed=[150m÷12] m/sec

speed  in km/hr =[150m÷12] ×[18÷5]  km/hr

speed  in km/hr= 45 kmph ANS