Difference between revisions of "2007 AMC 10B Problems/Problem 12"
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Tom's age is <math>T</math> years, which is also the sum of the ages of his three children. His age <math>N</math> years ago was twice the sum of their ages then. What is <math>T/N?</math> | Tom's age is <math>T</math> years, which is also the sum of the ages of his three children. His age <math>N</math> years ago was twice the sum of their ages then. What is <math>T/N?</math> | ||
Revision as of 14:35, 5 June 2011
Problem
Tom's age is 
years, which is also the sum of the ages of his three children. His age 
years ago was twice the sum of their ages then. What is 
Solution
Tom's age years ago was 
. The ages of his three children years ago was 
since there are three people. If his age years ago was twice the sum of the children's ages then,
See Also
| 2007 AMC 10B (Problems • Answer Key • Resources) | ||
| Preceded by Problem 11 |
Followed by Problem 13 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AMC 10 Problems and Solutions | ||
