Two airfields A and B are 400 miles apart, and B is due east of A.A plane flew from A to B in two hours and then returned to A in 2 1/2 hours.If the wind blew with a constant velocity from the west during the entire trip,find the speed of the plane in still air and the speed of the wind?

Question

anonymous · Answer

please help with solutions.

anonymous · Answer

say speed of plane=v
speed of wind=v'
400/(v+v')  = 5/2 hours
400/(v-v')  = 2 hours 
solve these for v and v'