To solve this question we have to make deduct these 2 years. 2112 minus 1987 will give the answer.
You are 125 years old.
(1500 months are passed.)
From 1987 to 2112 there are 125 years. If you want to learn your age in 2112 (born in 1987) your age is 125.
Let's see what will be your age if you born +1 or -1 from that date.