To solve this question we have to make deduct these 2 years. 2117 minus 1987 will give the answer.
You are 130 years old.
(1560 months are passed.)
From 1987 to 2117 there are 130 years. If you want to learn your age in 2117 (born in 1987) your age is 130.
Let's see what will be your age if you born +1 or -1 from that date.