alleryThe average Gregorian calendar year is how many days?
A365.25
B365.2422
C365
D365.2425
Answer & Solution
Correct answer: D. 365.2425
1. Gregorian years skip three leap days every 400 years.
2. This gives 400 x 365 + 97 = 146,097 days, and 146,097 / 400 = 365.2425.
3. 365.25 is the Julian year, and 365.2422 is the real tropical year.
_Source: Wikipedia, Leap year, Gregorian calendar_
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