To solve this question we have to make deduct these 2 years. 2115 minus 1955 will give the answer.
You are 160 years old.
(1920 months are passed.)
From 1955 to 2115 there are 160 years. If you want to learn your age in 2115 (born in 1955) your age is 160.
Let's see what will be your age if you born +1 or -1 from that date.