Question
The speed of a boat in still water is 12 km/h and the
speed of the stream is 3 km/h. How much time will the boat take to travel 27 km upstream?Solution
ATQ, Upstream speed = (speed in still water − speed of stream) = 12 − 3 = 9 km/h Time = Distance ÷ Speed = 27 ÷ 9 = 3 hoursÂ
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