To solve this question we have to make deduct these 2 years. 2118 minus 1998 will give the answer.
You are 120 years old.
(1440 months are passed.)
From 1998 to 2118 there are 120 years. If you want to learn your age in 2118 (born in 1998) your age is 120.
Let's see what will be your age if you born +1 or -1 from that date.