# SOLUTION: A jetliner flying with the wind traveled 3600 km in 6 hours. The return trip, against the wind, took 8 hours. Find the rate at which the jet flew in still air.

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 Click here to see ALL problems on Travel Word Problems Question 27689: A jetliner flying with the wind traveled 3600 km in 6 hours. The return trip, against the wind, took 8 hours. Find the rate at which the jet flew in still air. Answer by Paul(988)   (Show Source): You can put this solution on YOUR website!Let the speed of the plane be x Let the speed of the wind be y 6(x+y)=3600 (solve for y) 6x+6y=3600 6y=3600-6x y=600-x (subsitution) 8(x-y)=3600 8x-8y=3600 (apply subsitution) 8x-8(600-x)=3600 8x+8x-4800=3600 16x=8400 x=525 y=600-525 y=75 Hence, the speed of the plane in still air is 525mph and the speed of the wind is 75mph. PAUL.