2013 UNCO Math Contest II Problems/Problem 6
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.
(a) OCTOBER (b) SATURDAY
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