SOLUTION: A kayak moves at a rate of 12 miles per hour in still water. If the river�s current flows at rate of 4 miles per hour, how long does it take the boat to travel 36 miles upstream?

Question 1125921: A kayak moves at a rate of 12 miles per hour in still water. If the river�s current flows at rate of 4 miles per hour, how long does it take the boat to travel 36 miles upstream?
Answer by ikleyn(52776) (Show Source): You can put this solution on YOUR website!
.

The effective rate of kayak paddled upstream is 12- 4 = 8 miles per hour.


The time to travel 36 miles upstream will be   = 4.5 hours.

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