SOLUTION: I can't figure out how to solve this word problem: Flying to Kampala with a tailwind a plane averaged 158 km/h. On the return trip only averaged 112km/h while flying back into

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Question 264708: I can't figure out how to solve this word problem:
Flying to Kampala with a tailwind a plane averaged 158 km/h. On the return trip only averaged 112km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane in still air.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The "speed in still air" is called the airspeed.
It's the average of the 2 speeds given, which are called groundspeeds.
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Once you find the airspeed, the windspeed is the difference between the airspeed and the groundspeed.
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Airplanes don't use km/hr, they use knots. 1 knot = 1 nautical mile per hour.