Question
A man can swim at the rate of 6 km/hr in still water. If
the speed of the water is 3 km/hr, then the time taken by him to swim 12 km upstream isSolution
Rate upstream = 6 – 3 = 3 km/hr Distance upstream = 12 km Hence, required time = distance/speed = 12/3 = 4 hours
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2118, 2140, 2209, 2334, 2550, 2893
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