Two planes leave simultaneously from the same airport, one flying due east and the other due south.The eastbound plane is flying 75 miles per hour slower than the southbound plane.After 3 hours the planes are 1863 miles apart.Find the speed of the southbound plane.
A) 475 miles per hour
B) 350 miles per hour
C) 375 miles per hour
D) 425 miles per hour
E) 400 miles per hour

Question

Quizplus · Accepted Answer

The southbound plane is flying 75 miles per hour faster than the eastbound plane. So, the speed of the southbound plane is 1863 / 3 = 621 miles per hour.

Two Planes Leave Simultaneously from the Same Airport, One Flying