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a fishing boat took 3 hours to travel 36 km up stream against the current. the same trip downstream took 2 hours. what was the speed of the river current? |
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Answer» ong>Answer: speed of boat is 15KM per hour and speed of flow of water is 3km per hour Step-by-step explanation: Let speed of boat be x in still water and speed of water be y. km per hour Total distance to travel =36km in upstream 3x-3y=36 X-y=12 in downstream 2x+2y=36 X+y=18 on adding both EQUATION x-y+x+y=12+18 2x=30 x=15 then y=18-15=3 |
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