SOLUTION: A plane flies 1200 miles in 4 hours with the wind, but takes 5 hours to make the return trip against the same wind. What is the plane's average speed in still air?
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Question 884607: A plane flies 1200 miles in 4 hours with the wind, but takes 5 hours to make the return trip against the same wind. What is the plane's average speed in still air? Answer by ewatrrr(24785) (Show Source):
