If you were bon on 1999, then you are 12 years old now.

Some people give their age with years and months and for the sake of that we will consider the birth month.

If you were born on;

January 1999, then you are 12 years and 7 months old

February 199, then you are 12 years and 6 months old

March 1999, then you are 12 years and 5 months old

April 199, then you are 12 years and 4 months old

May 199, then you are 12 years and 3 months old

June 199, then you are 12 years and 2 months old

July 199, then you are 12 years and 1 month old

August 199, then you are 12 years old

September 199, then you are 11 years and 11 months old

October 1999, then you are 11 years and 10 months old

November 199, then you are 11 years and 9 months old

December 199, then you are 11 years and 8 months old

Make an equation for your age. Assume Y= Todays current year and M = Todays current month, and D= Todays current date. Then the answer is (Y - 1999) = C (let C be a Choice) Then you have this choice:

IF M/D (example 08/01) is less than the M/D of 1999 (the specific day in 1999 you are searching for) then Your answer is C-1 (in this example it would be 11)

IF M/D is greater than or equal to the M/D of 1999 then your answer C remains the correct answer (12 for this example)

Thus you are 11 or 12 based on THIS CURRENT DAY: 08/01/2011. Where M=8, D=1, and Y=2011.

This is a college level proof for the question asked.

You are either 11 or 12 years old, depending on whether your birthday falls before or after August 1st.

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