document.write( "Question 1037342: A plane can fly 312 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air, and the speed of the wind. \n" ); document.write( "
Algebra.Com's Answer #652023 by Alan3354(69443)\"\" \"About 
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A plane can fly 312 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air, and the speed of the wind.
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\n" ); document.write( "Find the 2 groundspeeds, downwind and upwind.
\n" ); document.write( "The plane's airspeed is the average of the 2.
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\n" ); document.write( "Windspeed is the difference between groundspeed and airspeed.
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