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The speed of the boat is 14 kmph in still water. If the speed of the stream is 5 kmph, then how long does it take for the boat to go 76 km downstream?

Answer 1:

Speed of the boat = 14 kmph

Speed of water = 5 kmph

Downstream flow = speed of the boat+speed of water

Therefore, Downstream flow = 14=5 = 19 kmph

Hence, time taken  = 76/19 = 4 hrs.