Difference between revisions of "2013 UNCO Math Contest II Problems/Problem 8"
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Revision as of 20:51, 19 October 2014
Problem
EXAMPLE: The non-terminating periodic decimal 
has period three and is abbreviated by placing a bar over the shortest repeating block.
(a) If all digits 
through 
are allowed, how many distinct periodic decimals 
have period exactly six? Do not include patterns like 
and 
that have shorter periods.
(b) If only digits and 
are allowed, how many distinct periodic decimals 
have period exactly 
?
Solution
See Also
| 2013 UNCO Math Contest II (Problems • Answer Key • Resources) | ||
| Preceded by Problem 7 |
Followed by Problem 9 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 | ||
| All UNCO Math Contest Problems and Solutions | ||
