Difference between revisions of "2005 AMC 8 Problems/Problem 6"
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Revision as of 00:08, 5 July 2013
Problem
Suppose 
is a digit. For how many values of is 
?
Solution
We see that 
works but 
does not. The digit can be from 
through 
, which is 
values.
See Also
| 2005 AMC 8 (Problems • Answer Key • Resources) | ||
| Preceded by Problem 5 |
Followed by Problem 7 | |
| 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 | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
