7. The distance between two stations is 540 km. A train takes 3 hours to cover this distance. Calculate the speed of the train in km/hr and m/s.
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In km/hr :
540 ÷ 3 = 180 km/hr
In m/s :
540 km = 540000 m
3 hr = 10800 hr
Therefore the speed is 540000 ÷ 10800 = 50 m/s
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