SOLUTION: an airplane flew for 4 hours against a head wind of 40km/h.on the return flight the same wind was now a tail wind,and the flight took 3 hours.find the speed of the airplane in stil
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Question 456108: an airplane flew for 4 hours against a head wind of 40km/h.on the return flight the same wind was now a tail wind,and the flight took 3 hours.find the speed of the airplane in still air. Answer by jorel1380(3719) (Show Source):
