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A boat travels for three hours with a current of 3 mph and [#permalink]

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24 Jul 2004, 22:33

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A boat travels for three hours with a current of 3 mph and then returns the same distance against the current in four hours. What is the boat's speed in calm water? How far did the boat travel one way?

A boat travels for three hours with a current of 3 mph and then returns the same distance against the current in four hours. What is the boat's speed in calm water? How far did the boat travel one way?

Let velocity of boat in calm water be V
(V+3)*3 = (V-3)*4 ... same distance
Solving V= 21

Re: A boat travels for three hours with a current of 3 mph and [#permalink]

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13 Jul 2016, 23:31

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