Brain Teasers
Walter and Grandmother
At the end of 2005 Walter was half as old as his grandmother. The sum of the years in which they were born is 3860. How old will Walter be at the end of 2006?
Answer
The sum of the ages of Walter and his grandmother at the end of 2005 is 2*2005-3860=150. Since Walter was half as old as his grandmother, Walter was 50 and his grandmother was 100. Therefore, Walter will be 51 at the end of 2006.Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments hidden to avoid spoilers.
Follow Braingle!