Question

flying to Kampala with a tailwind a plane averages 158km/h.on the return trip the plane only averages 112km/h while flying back into the same wins.find the speed of the wind and the speed of the plane is still air??

Answer 1

let distance be D
avg speed of airplane be x and speed or wind be y

x+y=158...(i)
x-y=112....(ii)
adding (i) and (ii)
2x=270
x=135 km/h
from (i)
135+y=158
y=158-135
y=23km/h