human
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?
assistant
How old is Rachel? ** Rachel's age is 8 x 2 = <<8*2=16>>16.
How old is Collete? ** Collete's age is 8 / 2 = <<8/2=4>>4.
What is the difference between the age of Rachel and Collete? ** Therefore the difference between their age is 16 - 4 = <<16-4=12>>12.
#### 12