well first of all you cannot be born 1962 to 2009, unless labor took that long ha. but if it is what I think you meant it to be it would be
47
If you were born in 1962, you would have turned 47 in 2009.
If you were born in 1962, you would be 49 years old in 2011. If you were born in 1962, you would be 50 years old in 2012.
47
On his birthday in 2009, a person born in 1962 turns 47.
2009-1962=47But they can be 46 if their birthday is later in the year.
You would be 47
2013 - 1962 = 51
3973
If you were born in 1962 before this date (today) you would be 48; after 47.
2012 - 1962 = 50
Assumed this person was born on January 1st, 1962, he/she would be 51.
If you were born in 1962, then on your birthday in 2011 you turn 49. H.B.