Lita is three times Joe's age. The difference of their ages is 10. Find their present ages.
L = Lita's age
J = Joe's age
Lita is three times Joe's age mean :
L = 3 J
The difference of their ages is 10 mean :
L - J = 10
L = 3 J so :
L - J = 10
3 J - J = 10
2 J = 10 Divide both sides by 2
J = 10 / 2 = 5
L = 3 J = 3 * 5 = 15
Lita's present ages = 15
Joe's present ages = 5