<PRE><B>Question 772532</B>
Please help me to solve this:An airplane flying with the wind took 2hours for a 1000 mile flight, and 2 1/2 hours for the return flight. Find the wind velocity and the speed of the airplane in still air. 
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Find the 2 groundspeeds.
d = r*t
r = d/t
The plane&#39;s airspeed is the average of the 2.
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The windspeed is the difference between airspeed and groundspeed.

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