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When did December last have 5 sat and 5 sun and 5 mon?
2007
When did July last have 5 fri 5 sat and 5 sun?
July last had 5 Fridays, 5 Saturdays and 5 Sunday's in 1994. we in 2011 will experience this phenomenon this July. this is also occur in July on 2022, 2033 and 2044, 2061, 2072, 2089 etc
What is the probability of getting 53 Sunday in a leap year?
Total number of days in a leap year is 366, ie 52 weeks and 2 days. The last 2 days can be either ( Mon Tue, Tue Wed, Wed Thu, Thu Fri, Fri Sat, Sat Sun, Sun Mon) The possible outcomes are 7 The outcomes where one of the day is a Sunday is 2 So probability of getting 53 Sundays is = 2/7. The exact probability is 28/97, which is about 28.87%.
When was the last time there were 5 Fri 5 Sat 5 Sun and 5 Mon in a month?
That has never happened, and ... without a significant change in the format of our calendar ... it never will. In order to have 5 each of four consecutive days of the week, the month must have 32 days in it. Under the present system, none of them does.
How often is there 5 Fridays Saturdays and Sundays in one month?
For that to happen, the month has to be 31 days long and has to start on a Friday. Since there are 7 months with 31 days and one chance in 7 a month will start on a Friday ( roughly, due to leap years) there is about once yaer this will happen.Next month has 5 Fridays, Saturdays, and Sundays.Since14.5% of all years have a January with 5 of (Fri-Sat-Sun),14.25% of all years have a March with 5 of (Fri-Sat-Sun),14.5% of all years have a May with 5 of (Fri-Sat-Sun),14.5% of all years have a July with 5 of (Fri-Sat-Sun),14.25% of all years have an August with 5 of (Fri-Sat-Sun),14% of all years have an October with 5 of (Fri-Sat-Sun), and14% of all years have a December with 5 of (Fri-Sat-Sun),the average occurrence comes to exactly once per year.
