We have two responses for you

Hi Todd,

If Brett and Jenny are each 10 years old, Brett can't be 5 years older and the sum of their age can't be 11. There is something wrong with the information in the question.

Check out a similar question at http://mathcentral.uregina.ca/QQ/database/QQ.09.07/h/george2.html

Hope this helps,
Janice

Todd,

If they are each 10 years old, then the sum of their ages is 20 years.
Maybe you mean that they are each less than 10 years old?

You’re looking for two numbers, both smaller than 10, that differ by 5
(like 6 and 1) and that add to 11.

Good luck!
Victoria