Question
A boat covers a distance of 72 km downstream in 6 hours,
while it takes 12 hours to cover the same distance upstream. What is the speed of the boat in still water?Solution
ATQ, Speed of boat in upstream = 72/6 = 12 kmph Speed of boat in downstream = 72/12 = 6 kmph ∴ Speed of boat in still water = (12 + 6)/2 = 18/2 = 9 kmphÂ
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