Question
Two cyclists start together from the same point and move
along a straight road in the same direction. One moves at 18 km/h and the other at 24 km/h. After how much time will they be 9 km apart?Solution
Relative speed = 24 − 18 = 6 km/h Distance between them = 9 km Time = distance / relative speed = 9 / 6 = 1.5 hours = 1 hour 30 minutes.
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