To solve this question we have to make deduct these 2 years. 2116 minus 1991 will give the answer.
You are 125 years old.
(1500 months are passed.)
From 1991 to 2116 there are 125 years. If you want to learn your age in 2116 (born in 1991) your age is 125.
Let's see what will be your age if you born +1 or -1 from that date.