# The speed of a Boat is in still water is 9 km per hr if the boat goes 54 km downstream in 4 hour find the speed of the stream

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by RUTVI1

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by RUTVI1

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Speed of boat downstream = 54 km / 4 hour = 13.5 km/hr

(Speed = Distance/time)

So, the speed of boat downstream will be the sum of the actual speed of boat and the speed of the stream

13.5 = 9 + Speed of the stream

Speed of the stream = 13.5 - 9 = 4.5 km/hr