A motor boat can travel 30 km upstream and 28 km downstream in 7 hours. It can travel 21 km upstream and return in 5 hours. Find the speed of the boat in still water and speed of the stream.
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Answer:
Speed Downstream = x + y. Now, Given that boat can travel 30km upstream and 28km downstream in 7 hours. ... Therefore the speed of the boat in still water = 10km/hr.
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The answer is 10km/h
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