human
Joel is 5 years old and his dad is 32 years old. How old will Joel be when his dad is twice as old as him?
assistant
How old is Joel's dad? ** The difference in age between Joel and his dad is 32 - 5 = <<32-5=27>>27 years.
How old will Joel be when his dad is twice as old as him? ** When you double this gap in years, you have 27 x 2 = <<27*2=54>>54.
How old will Joel be when his dad is twice as old as him? ** When his dad is 54, Joel will be 54 / 2 = <<54/2=27>>27 years old.
#### 27