+0  
 
0
43
1
avatar

With a head wind, a plane traveled 1000 miles in 4 hours. With the same wind, the return trip took 3 hours 20 minutes. Find the plane’s air speed and the wind speed.

 Sep 16, 2020
 #1
avatar
0

1000 / 4 =250 mph - its speed with a headwind.
1000 / 3 1/13 =300 mph - its speed with the wind.

 

[250 + 300] / 2 =275 mph - its speed in still air.
[300 - 250] / 2  =25 mph - wind's speed

 Sep 16, 2020

67 Online Users

avatar