Posted by **Andrew** on Wednesday, May 4, 2011 at 11:18am.

A boat moves 7 kilometers upstream in the same amount of time it moves 17 kilometers downstream. If the rate of the current is 9 kilometers per hour, find the rate of the boat in still water.

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**Andrew**, Wednesday, May 4, 2011 at 11:23am
21 3/5

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