Flying to Kampala with a tailwind a plane averaged 158 km/h. On the return trip the plane averaged 112 km/h while flying back into the same wind. Find the speed of the wind and the speed of the plane in still air.
[158 + 112] / 2 =135 Km/hour- average speed without wind.
[158 - 112] /2 =23 Km/hour-average wind speed.
