SOLUTION: A private airplane flies at a speed of 220 km per hour in still air. On a trip from Red Deer to Fort McMurray, the airplane flies into a headwind. Then it returns to Red Deer with

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Question 1154312: A private airplane flies at a speed of 220 km per hour in still air. On a trip from Red Deer to Fort McMurray, the airplane flies into a headwind. Then it returns to Red Deer with a tailwind. The total distance for the trip is 550 km, and the total time is 5 hours and 3 minutes. Determine the speed of the wind.
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
             SPEED              TIME              DISTANCE

R to M        220-w            225/(220-w)          225

M to R        220+w            225/(220+w)          225

TOTAL                            5&(3/60)           550

Total Time Equation:
highlight_green%28225%2F%28220-w%29%2B225%2F%28220%2Bw%29=5%261%2F20%29