SOLUTION: a motorboat can travel 15 kph downstream and 9 kph upstream on a certain river. Find the rate of its current and the rate at which the boat can travel in still water.

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Question 1058033: a motorboat can travel 15 kph downstream and 9 kph upstream on a certain river. Find the rate of its current and the rate at which the boat can travel in still water.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a motorboat can travel 15 kph downstream and 9 kph upstream on a certain river.
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Find the rate at which the boat can travel in still water.
(15+9)/2 = 12 km/hr
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Find the rate of its current
15 - 12 = 3 km/hr