When Hannah was 6 years old, her age was double the age of her sister July. Now, 20 years later, if July's husband is 2 years older than her, how old is he?
July was 6 / 2 = <T>divide(6, 2)=3.0 years old when Hannah was 6.
Now, July is 3 + 20 = <T>add(3, 20)=23 years old
July's husband is 23 + 2 = <T>add(23, 2)=25 years old
