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An airplane takes 2 hours to fly 579.24km with the wind and 5 hours 36 minutes for the return flight against the wind. What is the speed of the airplane and that of the wind?

 Aug 2, 2021
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TO :   579.24/2 = 289.62 km/hr

RETURN 579.24/5.6=103.43 km/hr

 

 

7.6 hours roundtrip  of 1158.48 km

 

Average = 152.43  km/ hr    = plane speed

152.43 - 103.43 = wind speed = 48.99=~~49 km/hr

 Aug 2, 2021

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