To solve this question we have to make deduct these 2 years. 2119 minus 1975 will give the answer.
You are 144 years old.
(1728 months are passed.)
From 1975 to 2119 there are 144 years. If you want to learn your age in 2119 (born in 1975) your age is 144.
Let's see what will be your age if you born +1 or -1 from that date.