To solve this question we have to make deduct these 2 years. 2103 minus 1978 will give the answer.
You are 125 years old.
(1500 months are passed.)
From 1978 to 2103 there are 125 years. If you want to learn your age in 2103 (born in 1978) your age is 125.
Let's see what will be your age if you born +1 or -1 from that date.