Question

Five years ago Hank was half his sister’s age at that time. Right now the sum of

their ages is 43. How old will they both be next year?

Answer 1

• Hank: 17
• Sister: 28

Explanation:

Five years ago the sum of their ages was 10 less than it is now, so was 33. If Hank was half his sister's age, his age was 1/3 of this total. 5 years ago, Hank was 11 and his sister was 22.

Next year, both will be 6 years older than those ages, so ...

Hank will be 17

Hank's sister will be 28