2013 UNCO Math Contest II Problems/Problem 6
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Problem
There is at least one Friday the Thirteenth in every year.
(a) What is the latest possible month in which the first Friday the Thirteenth can occur?
(b) In a year in which the first Friday the Thirteenth occurs in its latest month, what day of the week is January 
?
The table below shows the number of days in each month. February has 
days in leap years and 
in others.
Solution
(a) OCTOBER (b) SATURDAY
See Also
| 2013 UNCO Math Contest II (Problems • Answer Key • Resources) | ||
| Preceded by Problem 5 |
Followed by Problem 7 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 | ||
| All UNCO Math Contest Problems and Solutions | ||
