2004 AMC 8 Problems/Problem 17: Difference between revisions
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Revision as of 00:00, 5 July 2013
Problem
Three friends have a total of 
identical pencils, and each one has at least one pencil. In how many ways can this happen?
Solution
For each person to have at least one pencil, assign one of the pencil to each of the three friends so that you have 
left. In partitioning the remaining pencils into distinct groups, use stars and bars to find the number of possibilities is 
.
See Also
| 2004 AMC 8 (Problems • Answer Key • Resources) | ||
| Preceded by Problem 16 |
Followed by Problem 18 | |
| 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 AJHSME/AMC 8 Problems and Solutions | ||
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