Question
A boat covered 180 km along the stream in 6 hours and 120
km against the stream in 6 hours. Find the speed of boat in still water.Solution
Downstream speed = (180/6) = 30 km/h Upstream speed = (120/6) = 20 km/h Speed of boat in still water = (30 + 20) ÷ 2 = 25 km/h
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