Tuesday
March 31, 2015

Homework Help: math

Posted by Ed on Thursday, February 16, 2012 at 7:51am.

2 airplanes start at the same time from airports 500 km apart. Each flies with an airspeed of 200 km/hr toward the other airport. One reaches its airport half an hour before the other plane reaches the other airport. How fast is the wind blowing?

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