Posted by Kevin on .
Jill and Bill are two members of the Hill family. Jill is 8 years old and Bill is 9 years old. What will Bill's age be when the total of the digits in both their ages is once again 17?

Math 
Steve,
1+8+x + 1+9+x = 10+10+17
2x = 18
x=9
17,18