Question

Ella is twice Bella's age, and Stella is three times Bella's age. The difference between Stella's and Bella's ages is 8 yrs. How old is each girl?
Manny
Stella is 12
Ella is 8
Bella is 4
Reiny
Bella's age: x
Ella's age: 2x
Stella's age: 3x

difference between Stella's age and Bella's age is 8
3x - x = 8
etc.