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Each year has 365 days, with every fourth year has an extra 'leap day,' so on average, each year would have 365.25 days:
(365 +365 + 365 + 366)/4 = 365.25
The Leap Years are years divisible by 4. But every 'century year' is not a leap year,
with the exception of the Millennium years
An example using only the years divisible by four:
1896 Leap Year
1900 Not Leap Year (this is a century year)
1904 Leap Year
. . .
1996 Leap Year
2000 Leap Year (this is a millennium year)
2004 Leap Year
2008 Leap Year
etc.
So if the 10 decades (100 years) includes a millennium year (for example 1901-2000), then the answer is 36525 days.
But if the 10 decades (100 years) does not include a millennium year (for example 1891-1990), then the answer is 36524 days.
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How many days are in 100 decades?
100 decades = 365,242.2 days.
How Many Days Is a Decades?
A decade is 10 years. There is technically 365.25 days in a year. So 3652 and a half days in a decade
How many days in 4 decades?
14,610 days
How many days in two decades?
7,300 days.
How many decades are in one century?
10 decades in 1 century
