Question

two airplanes at 25000 feet above the ground are flying toward the same airport. Airplane A is flying due south towards the airport at 200 miles per hour, and Airplane B is flying due west toward the airport at 250 miles per hour. At 10:00 am Airplane A is 700 miles from the airport, and airplane b is 925 miles from the airport. How far are the two airplanes from each other at 10:30am?
a. 1000 miles
b. 1160 miles
c. 1400 miles
d. 1625 miles
e. 1800 miles