Question
If Boat goes 80 km upstream in 4 hours and 60 km
downstream in 2 hours, then the speed of the boat in still water isSolution
Let the speed of boat = x and the speed of the stream = y 80/(x - y) = 4 => x - y = 20 60/(x + y) = 2 => x + y = 30 From above x = 25 km/hr
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