To solve this question we have to make deduct these 2 years. 2098 minus 1983 will give the answer.
You are 115 years old.
(1380 months are passed.)
From 1983 to 2098 there are 115 years. If you want to learn your age in 2098 (born in 1983) your age is 115.
Let's see what will be your age if you born +1 or -1 from that date.