Current Age = Current Year - Year of Birth, if the person has had a birthday in the current year and one year less than that if not.
You are normally 0 years old when you are born! And it makes no difference when that happen - 1989 or 2015.
21years.
1989
1989
If you were born on The 21st of December on 1989, you would be 20 years old 19 years old, you would only be 20 on the 21st of December.
20
20
21years.
21
25
You could be born in 1988 or 1989, depending on the month.
You would be 21 years old
Vanessa was born in 1989 - (current year minus 1989)
Rochelle was born in 1989 - (current year minus 1989)
Twenty-four 1989 + 24 = 2013
1989
1989
25