Problema Solution
A certain starship can fly 816 miles with the wind in 3 hours and travel the same distance against the wind in 8 hours. What is the speed of the wind?
Answer provided by our tutors
x is speed of starship and y is speed of wind..
3 (x + y) = 816
and 8 (x-y) = 816
5x = 11y
x = 2.2 y
9.6 y = 816
y = 85, x = 187