Question
A boat takes 4 hours to travel 48 km downstream and 6
hours to travel the same distance upstream. What is the speed of the boat in still water?Solution
ATQ, Downstream speed = 48 / 4 = 12 km/h Upstream speed = 48 / 6 = 8 km/h Speed in still water = (Downstream + Upstream) / 2 = (12 + 8)/2 = 10 km/h
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