To solve this question we have to make deduct these 2 years. 2118 minus 1968 will give the answer.
You are 150 years old.
(1800 months are passed.)
From 1968 to 2118 there are 150 years. If you want to learn your age in 2118 (born in 1968) your age is 150.
Let's see what will be your age if you born +1 or -1 from that date.