Problema Solution
A plane travels from orlando to Denver and back again. On the five hour trip from orlando to denver the plane has a tailwind of 40 miles per hour. This trip takes six hours. What is the speed of the airplane in still air?
Answer provided by our tutors
Let x be the speed of the aeroplane.
(x+40) = speed of plane downwind
(x-40) =speed of plane against the wind
distance = speed *travel time.
5(x+40) = 6(x-40)
5x+200=6x-240
6x-5x=240+200
x=440 mph