Question
A boat can cover 170 km in downstream in 2 hours and 145
km in upstream in 5 hours. Find the speed of boat in still water.Solution
Downstream speed of the boat = 170/2 = 85 km/hr Upstream speed of the boat = 145/5 = 29 km/hr Speed of boat in still water = (85 + 29)/2 = 57 km/hr
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