SOLUTION: solve (a plane flys 2400 miles one way and takes 4 hours, then fly's back the same way and takes an hour and a half longer. what is the speed of the plane in still air and what is
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Question 350114: solve (a plane flys 2400 miles one way and takes 4 hours, then fly's back the same way and takes an hour and a half longer. what is the speed of the plane in still air and what is the wind speed? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! solve (a plane flys 2400 miles one way and takes 4 hours, then fly's back the same way and takes an hour and a half longer. what is the speed of the plane in still air and what is the wind speed?
..
2400 miles = 4 hours
speed = distance /time
speed = 600 mph
..
2400 miles 5 1/2 hours = 11/2 hours
speed = distance /time
speed = 2400/(11/2)
=2400 *2/11
4800/11
=436.36 mph
..
let speed in still air be x
let speed of wind = y
...
x+y =600
x-y = 436
Add the equations
2x=1036
x= 1036/2
x= 518 mph
y = 600-518 = 82 mph
