Question
There is a road beside a river. Two friends, A and
There is a road beside a river. Two friends, A and
B. started their journey from place P, moved to the garden located at another place Q and then returned to place P. A moved by swimming at a speed of 15 km/h while B sailed on a boat at a speed of about 18 km/h. If the flow of water current is at the speed of 6 km/h, what will be the average speed (in km/h) of the boat sailor?
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