# SOLUTION: With a tailwind, a jet flew 2000 miles in 4 hours. The jets return trip against the same wind required 5 hours. Find the jets speed and the wind speed.

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 Question 378012: With a tailwind, a jet flew 2000 miles in 4 hours. The jets return trip against the same wind required 5 hours. Find the jets speed and the wind speed.Answer by mananth(12270)   (Show Source): You can put this solution on YOUR website!With a tailwind, a jet flew 2000 miles in 4 hours. The jets return trip against the same wind required 5 hours. Find the jets speed and the wind speed. .. plane speed = xmph current speed = y mph .. with tailwind speed = x+y against wind speed = x-y .. 2000/(x+y)=4 4(x+y)=2000 4x+4y=2000 /4 x+y =500 ......................1 ... 2000/(x-y)=5 5(x-y)=2000 5x-5y = 2000 /5 x-y = 400......................2 add 1 & 2 2x=900 /2 x= 450 mph .... speed of plane in still air .. x+y =500 x+450=500 x=500-450 x=50 mph ... speed of wind ... m.ananth@hotmail.ca