Question 739969
plane speed = 205 mph
wind sped = x mph

against wind = 205-x
with wind = 205 +x

t=d/r

time against wind - time with wind =1

800/(205-x)-800/(205+x) =1

800(205+x)-800(205-x)=(205-x)(205+x)

164000+800x-164000+800x=42025-x^2

1600x+x^2-42025=0

solve for x the wind speed should get wind speed = 25.85 mph