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OpenStudy (anonymous):
An airplane flew 3 hours with a 40 mph head wind. The return trip with a tail wind of the same speed took 2 hours. Find the speed of the plane in still air. 180 mph 200 mph 220 mph 240 mph
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OpenStudy (anonymous):
i kept getting 240 but i thinks it's wrong
OpenStudy (anonymous):
Tell me your logic
OpenStudy (anonymous):
You can make an equation by working out the distance travelled there and back. How far did they travel there? Find the expression. How far did they travel back - same make them equal. Solve.
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