In 1999.
2017 - 18 = 19991999 + 3 = 2002
Where you were born is irrelevant. In 2017 (now) you would be 64 years old if you have had your birthday this year, otherwise you are 63.
If you were born in 1999 you would graduate from high school in the year of 2017.
You need to subtract 2017 minus 1999. If you didn't celebrate your birthday yet in the current year, you then need to subtract 1 from the result.
25 years from now (2017), it will be the year 2042.
Subtract 22-2017 and you get the year they were born. Easy peasy.
2017 − 42 = 1975 was the year of birth.
2017 - 18 = 19991999 + 3 = 2002
someone born in 1928would have an 89th birthday in 2017
Where you were born is irrelevant. In 2017 (now) you would be 64 years old if you have had your birthday this year, otherwise you are 63.
People turning 21 in 2017 were born in 1996
1967
Subtract 20-2017. Easy you should be able to figure that out at 20 years old.
They would celebrate their eighteenth birthday this year (2017).
They would celebrate their 21st birthday this year (2017)
1996 + 21 = 2017
1997 was 20 years before 2017.