Question 1147925
An airplane takes 
3
3 hours to travel a distance of 
1920
1920 miles with the wind. The return trip takes 
4
4 hours against the wind. Find the speed of the plane in still air and the speed of the wind.
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Find the 2 groundspeeds.
The plane's airspeed is the average of the 2.
The windspeed is the difference between airspeed and groundspeed.