SOLUTION: An airplane covers a distance of 2,400 miles in 4 hours when it flies with the wind and 5 1/3 hours when it flies against the wind. What is the speed of the plane in still air?

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Question 1021457:
An airplane covers a distance of 2,400 miles in 4 hours when it flies with the wind and 5 1/3 hours when it flies against the wind. What is the speed of the plane in still air?


Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Examine this presentation and compare with your example, and try to solve.
Note carefully that your example uses equal distance in both directions.

travel rates equal times different distances, involve wind

Did it help? The channel has also another example of travel rates which may yet be helpful.

Some help with the data table, based on travel rates rule RT=D, and implied variable assignments: 
                     rate          time         distance

WITH WIND           r+w             4            2400

AGAINST WIND        r-w            5%261%2F3          2400