An airplane flying against the wind travels 175 miles in the same amount of time it would take the same plane to travel 185 miles with the wind. If the wind speed is a constant 10 miles per hour, how fast would the plane travel in still air?
A) 194 miles per hour
B) 360 miles per hour
C) 203 miles per hour
D) 185 miles per hour
E) 19 miles per hour

Question

Quizplus · Accepted Answer

The plane's speed in still air is calculated by setting up the equation for time: 175/(x-10) = 185/(x+10), where x is the plane's speed in still air. Solving this equation gives x = 360 miles per hour.

An Airplane Flying Against the Wind Travels 175 Miles in the Same