Rachel is twice as old as Rona and Collete's age is half the age of Rona's. If Rona is 8 years old, what is the difference between the age of Collete and Rachel?
Thoughts? Step-by-step reasoning:
Rachel's age is 8 x 2 = 16. Collete's age is 8 / 2 = 4. Therefore the difference between their age is 16 - 4 = 12.
Thus, the answer is 12.