With a head wind, a plane traveled 1000 miles in 4 hours. With the same wind, the return trip took 3 hours 20 minutes. Find the plane’s air speed and the wind speed.
1000 / 4 =250 mph - its speed with a headwind. 1000 / 3 1/13 =300 mph - its speed with the wind.
[250 + 300] / 2 =275 mph - its speed in still air. [300 - 250] / 2 =25 mph - wind's speed
