143 years old now in 2023 - what year born?


Today, 7 December 2023 if a person is 143 years old now, what year was he born? See below:


If 143 years old, year of birth is:
1879 or 1880*
*It depends on whether he was born before or after 1 January 1880.


If now 143 years and his year of birth 1879 if he was born after 7 December 1879 until 31 december 1879 inclusively, and his year of birth is 1880 if he was born from 1 January 1880 to 7 December 1880.


Other examples:

If now 4 years, year of birth 2018 or 2019
If now 14 years, year of birth 2008 or 2009
If now 25 years, year of birth 1997 or 1998
If now 56 years, year of birth 1966 or 1967

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