Question
A helicopter can fly 120 mph in still air. When flying to a town 700 miles away and returning the helicopter has to fly with a tailwind of x mph when going to the town and with a head wind of x mph when returning. If the return flight takes 2 hours more than the flight to the town, find the wind speed. Please show your work
Answers
Steve
since time = distance/speed,
700/(120-x) = 720/(120+x)+2
x = 20
700/(120-x) = 720/(120+x)+2
x = 20