To solve this question we have to make deduct these 2 years. 2098 minus 1989 will give the answer.
You are 109 years old.
(1308 months are passed.)
From 1989 to 2098 there are 109 years. If you want to learn your age in 2098 (born in 1989) your age is 109.
Let's see what will be your age if you born +1 or -1 from that date.