An airplane flew with the wind for 2.5 hours and returned the same distance against the wind in 3.5 hours. If the cruising speed of the plane was a constant 360 mph in air, how fast was the wind blowing?
(Hint: If the wind speed is r miles per hour, then the plane travels at (360-+r) mph with the wind and at (360-r) against the wind.)
(Hint: If the wind speed is r miles per hour, then the plane travels at (360-+r) mph with the wind and at (360-r) against the wind.)