Ok, so first let's convert 1/2 to eights. Now we need to find something greater than 2/8, but less than 4/8. So you can draw a number line, or do it mentally. So at the end you should get 3/8, which is LESS than 4/8 but GREATER than 2/8.
Plane averaged 88mph with the wind and 44 against the wind. the average of these two averages is 66 mph. plane speed in still air is 66 and the wind speed was 22 (88-22=66 and 44+22=66)
