To solve this question we have to make deduct these 2 years. 2100 minus 1955 will give the answer.
You are 145 years old.
(1740 months are passed.)
From 1955 to 2100 there are 145 years. If you want to learn your age in 2100 (born in 1955) your age is 145.
Let's see what will be your age if you born +1 or -1 from that date.