SOLUTION: Flying with the wind, a pilot flew 800 km between two cities in 4 hours. The return trip against the wind required 5 hours. Find: a) The rate of the plane in calm air and, b) The

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Flying with the wind, a pilot flew 800 km between two cities in 4 hours. The return trip against the wind required 5 hours. Find: a) The rate of the plane in calm air and, b) The      Log On


   



Question 188460: Flying with the wind, a pilot flew 800 km between two cities in 4 hours. The return trip against the wind required 5 hours. Find:
a) The rate of the plane in calm air and,
b) The rate of the wind

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
800/4=200 kph
800/5=160 kph
(200-160)/2=40/2=20 kph is the speed of the wind.
200-20=180 speed of the plane.
160+20=180 ditto.