Question 1065446
A plane flies 1200 miles in 4.8 hours against the wind.  Returns 1200 miles with the wind in 4 hours. What is the wind speed.  What is the plane speed.

d=rt

1200=(p-w)4.8
1200=(p+w)4
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And?
(p-w)4.8 = (p+w)4
Now what?
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The plane's airspeed is the average of the groundspeeds upwind and downwind.
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1200/4.8 upwind
1200/4 downwind
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Windspeed is the difference between airspeed and groundspeed.