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Two trains start from the same station at 11p.m in opposite direction at speeds of 72km/h and 63km/h. at what time they will be 810 km apart?
Answers (1)
As trains move in the opposite direction, so the relative speeds of trains = 72 + 63 = 135 km/h
Distance = 810 km
Time = Distance/Speed = 810/135 = 6 hours
Hence at 5 a.m. they will be 810 km apart.
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