SOLUTION: At full speed an airplane can travel 2800 miles with the wind in 4 hours but it requires 7 hours to travel the same distance against the wind. In miles per hour what is the maximum

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Question 305893: At full speed an airplane can travel 2800 miles with the wind in 4 hours but it requires 7 hours to travel the same distance against the wind. In miles per hour what is the maximum speed of the plane in air?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
At full speed an airplane can travel 2800 miles with the wind in 4 hours but it requires 7 hours to travel the same distance against the wind. In miles per hour what is the maximum speed of the plane in air?
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2800/4 = 700 mph
2800/7 = 400 mph
The airspeed is the average = (700+400)/2
= 550 mph