Question 150895: Joe is 15 years older than Sally. in 15 years Joe will be 3 times as old as sally is now. How old is Sally?: Joe is 15 years older than Sally. in 15 years Joe will be 3 times as old as sally is now. How old is Sally? Answer by vleith(1162) (Show Source):
You can put this solution on YOUR website! Let j be joe's age and s be sally's age.
Given
Also given
Substituting from above yields
Joe is 30
sally is 30-15 = 15
