To solve this question we have to make deduct these 2 years. 2085 minus 1970 will give the answer.
You are 115 years old.
(1380 months are passed.)
From 1970 to 2085 there are 115 years. If you want to learn your age in 2085 (born in 1970) your age is 115.
Let's see what will be your age if you born +1 or -1 from that date.