A plane makes a 240-mile trip against a head wind in 1 hour and 30 minutes and returns, with a tail wind of the same speed, in 1 hour. What is the speed of the wind?

Question

A) 80 mph
B) 200 mph
C) 40 mph
D) 160 mph

Answer 1

p - w = 240 / 1.5

p + w = 240 / 1

adding equations ... 2 p = 400

solve for p , then substitute back to find w

Answer 2

1 hour = 60 minutes 240 + 30 m+ 1 hour = 330 is the speed