Question 1079094
Let s be the speed of the plane in still air, and w be the speed of the wind. Then:
450/s+w=2
450/s-w=3
2s+2w=450
3s-3w=450
6s+6w=1350
6s-6w=900
12s=2250
s=187.5
w=37.5
The plane flies 187.5 mph in still air; the wind speed is 37.5 mph. ☺☺☺☺