To solve this question we have to make deduct these 2 years. 2120 minus 1968 will give the answer.
You are 152 years old.
(1824 months are passed.)
From 1968 to 2120 there are 152 years. If you want to learn your age in 2120 (born in 1968) your age is 152.
Let's see what will be your age if you born +1 or -1 from that date.