Worldwide Airlines flies from Lakeside to Whichitfalls in 4 hours with a tail wind, The return trip against the wind takes 5 hours. Whichitfalls is 5040km from Lakeside. Find the speed of the plane and the velocity of the wind. Would you get on the plane?

distance = speed * time, so if the plane's speed is x and the wind speed is y, we have

4(x+y) = 5040
5(x-y) = 5040

x = 1134
y = 126