Problema Solution
it took an airplane 3 hours to fly 960 mi against a headwind. the return trip the wind took 2 2/3 hours. find the speed of the plane with no wind and the windspeed.
the speed of the plane is ______ mph
the windspeed is_______mph
Answer provided by our tutors
let speed of airplane = x mi/hr
speed of wind = y mi/hr
against the wind:
speed = x-y
960/3 = x-y
=> x-y = 320
with the wind:
speed = x+y
=>960/8/3 = x+y
=> 360 = x+y
=>x+y+x-y = 320+360
=> 2x = 680
=> x = 340 miles/hr
y = 20 miles/hr