Question
A boat can cover 143 km in downstream in 11 hours and
120 km in upstream in 12 hours. Find the speed of boat in still waterSolution
Downstream speed of the boat = 143/11 = 13 km/hr Upstream speed of the boat = 120/12 = 10 km/hr Speed of boat in still water = (13 + 10)/2 = 11.5 km/hr
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