105 years old now in 2020 - what year born?


Today, 22 September 2020 if a person is 105 years old now, what year was he born? See below:


If 105 years old, year of birth is:
1914 or 1915*
*It depends on whether he was born before or after 1 January 1915.


If now 105 years and his year of birth 1914 if he was born after 22 September 1914 until 31 december 1914 inclusively, and his year of birth is 1915 if he was born from 1 January 1915 to 22 September 1915.


Other examples:

If now 3 years, year of birth 2016 or 2017
If now 12 years, year of birth 2007 or 2008
If now 28 years, year of birth 1991 or 1992
If now 86 years, year of birth 1933 or 1934

HTML code:
BB code:

More: