Question 1109610
velocity * time=distance
V (going)*5.4 hours=2700 miles, so V (going)=500 mph.
V(return)*5 hours=2700 miles, so V(return)=540 mph
velocity=p-w with headwind, p plane, w wind
p+w with tail wind
p+w=540
p-w=500, add them
2p=1040
p=520 mph plane
w=20 mph wind