To solve this question we have to make deduct these 2 years. 2119 minus 1990 will give the answer.
You are 129 years old.
(1548 months are passed.)
From 1990 to 2119 there are 129 years. If you want to learn your age in 2119 (born in 1990) your age is 129.
Let's see what will be your age if you born +1 or -1 from that date.