To solve this question we have to make deduct these 2 years. 2105 minus 1998 will give the answer.
You are 107 years old.
(1284 months are passed.)
From 1998 to 2105 there are 107 years. If you want to learn your age in 2105 (born in 1998) your age is 107.
Let's see what will be your age if you born +1 or -1 from that date.