英文数学题目
FlyingtoSanSalvadorwithatailwindaplaneaveraged114mph.Onthereturntriptheplaneonlyavera...
Flying to San Salvador with a tailwind a plane averaged 114 mph.On the return trip the plane only averaged 60.8 mph while flying back into the same wind.Find the speed of the wind and the speed of the plane in still air.
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