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The Hudson River flows at a rate of 5 miles per hour A patrol boat travels 40 miles upriver and returns in a total time of 6 hours What is the speed of the boat in still waters?
Wiki User
∙ 15y ago
15 MPH. On the way up the river subtracts from the speed of the boat so the time is 40/10 or 4 hours. On the way back the river adds to the speed of the boat so the time is 40/20 or 2 hours. The total time is 6 hours.
Wiki User
∙ 15y ago
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