That depends on what the school system is in your country ! Different countries have different leaving ages.
1988
You start school (usually) at 6. Add 6 to 1964= 1970 is when you started school. You go to school for 12 years 1970+12 = 1982 is when you should graduate.
1988. If 18 years old. If 17 when graduated, then 1987.
If you were born in 1999 you would graduate from high school in the year of 2017.
You were born in 1945 (2012-67).
2020
If 21 when graduated it will be on the year 1991
You start school (usually) at 6. Add 6 to 1964= 1970 is when you started school. You go to school for 12 years 1970+12 = 1982 is when you should graduate.
1988. If 18 years old. If 17 when graduated, then 1987.
You would graduate in the year 2008
If you were born in 1999 you would graduate from high school in the year of 2017.
You were born in 1945 (2012-67).
This year would need to delete your age to know what year you were born. So, since (2024 - 39 = 1,985), that is your correct birth year.
2020
1970
What year would you graduate in if your were born in 1979
You were born in 1970
If you were born in early to mid '97, you would graduate in '15. However, if you were born in mid to late '97, you would graduate in '16.