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December 20, 2014

December 20, 2014

Posted by **justin** on Tuesday, December 4, 2012 at 2:43am.

- math/physics -
**drwls**, Tuesday, December 4, 2012 at 7:08amLet the wind speed be v.

400/(230 +v) = 336/(230-v) is the flight time in either direction.

Solve for v. It will be in mph

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