SOLUTION: A certain plane flying with the wind travels 540 mi in 2 hours. Later, flying against the same wind, the plane travels 690 mi in 3 hours. Find the speed of the plane in still air a
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Question 185118: A certain plane flying with the wind travels 540 mi in 2 hours. Later, flying against the same wind, the plane travels 690 mi in 3 hours. Find the speed of the plane in still air and the speed of the wind. Answer by solver91311(24713) (Show Source):
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Distance equals rate times time. When the plane is going with the wind, ground speed is air speed plus wind speed. Against the wind, ground speed is air speed minus wind speed.
