January, March, May, July, August, October, December
These are 7 months
12 Months
11 of 12 months have at least 30 days
1, and it's February, but only during a leap year
Seven
Anything from 2 months + 6 days to exactly 2 months - depending on which months are picked.
Only February has exactly 28 days in a non leap year.
203 days is equal to exactly 6.66954697 months, or approximately 6 months and 3 weeks.
Almost exactly 3 months for a year of 365 days. (2.998 average months) An average month is about 30.4 days because months can vary in the number of days. Exactly 3 months is 91.3 days in a Julian year, either 91.25 or 91.5 calendar days
All of them
Thirty-one weeks is seven and one quarter months. It is not seven and three-quarters months because 31 weeks X 7 days in a week / 30 days in a month = about 7.25.
11. The question is not specifically asking how many months have "exactly" 30 days. 11 months have "at least" 30 days. There are four months that do have exactly 30 days, and there are at least five different versions of this riddle.
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