Question

An airplane can travel 350 mph in still air. If it travels 1995 miles with the wind

in the same length of time it travels 1505 miles against the wind, what is the speed of the wind?

Answer 1

49 mph

Explanation:

RT=D

T = D/R

`(1995)/((350 + x) ) =(1505)/(350-x)`

1995(350-x) = 1505(350+x)

x=49