To solve this question we have to make deduct these 2 years. 2120 minus 1962 will give the answer.
You are 158 years old.
(1896 months are passed.)
From 1962 to 2120 there are 158 years. If you want to learn your age in 2120 (born in 1962) your age is 158.
Let's see what will be your age if you born +1 or -1 from that date.