21
If you are 21 years old, you were born in 1990. (2011)
20.
You will be 23 in 2013. How old I am is none of your business.
19
If you are 20 years old, when were you born?If you are 20 years old, you were born in 1990.
If I was born in April 1990, I would be 31 years old.
You will be 23 years old in 2013. Anyone born in 1990 will turn 23 on their birthday in 1990.
2012-1990 = 22 years old.
He wasn't born in 1990.
2013 - 1990 = 23 If you were born in 1990, you would be 23 in 2013.
21
Someone born in 1990 would be 23 on their birthday in 2013
He is 21 years Old. Born in 1990
If you were born in 1990, then you'll turn 23 on your birthday in 2013.
22
She was born in 1990