A man was born on the 29th of February, 1980. How many birthdays has he celebrated after his birth till today?
Explanation
To determine how many birthdays a man born on February 29, 1980, has celebrated, follow these steps:
1. Identify leap years between 1980 and the current year:
Leap years are divisible by 4, but century years are only leap years if they are divisible by 400.
2. List the leap years after 1980 up to 2024:
- 1980
- 1984
- 1988
- 1992
- 1996
- 2000
- 2004
- 2008
- 2012
- 2016
- 2020
From 1980 to 2024, there are 11 leap years.
3. Since 2024 is not completed yet, we count birthdays until 2020:
The man has celebrated his birthday in the years: 1984, 1988, 1992, 1996, 2000, 2004, 2008, 2012, 2016, and 2020.
He has celebrated his birthday 10 times (not including the year 1980 when he was born).
A. 10
