An Airplane Flying into a Headwind Travels 2016 Miles in 4

Multiple Choice

An airplane flying into a headwind travels 2016 miles in 4 hours and 12 minutes. On the return flight, the same distance is traveled in 4 hours. Find the speed of the plane in still air, assuming that both the speed of the plane and the speed of the air remains constant throughout the round trip. Round to the nearest miles.

A) 468 miles per hour
B) 492 miles per hour
C) 516 miles per hour
D) 480 miles per hour
E) 504 miles per hour