In a 7 day period, each day of the week happens exactly once.
In a 14 day period, each day of the week happens exactly twice.
In a 21 day period, each day of the week happens exactly three times.
In a 28 day period, each day of the week happens exactly four times.
In a 29 day period , i.e. Februarys in leap years, 6 days of the week happen exactly 4 times and one day of the week happens 5 times. (4x6 +1x5 = 29).
Last edited by Average Guy; 02-17-2015 at 11:07 AM.
Reason: typo
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