To solve this question we have to make deduct these 2 years. 2119 minus 1969 will give the answer.
You are 150 years old.
(1800 months are passed.)
From 1969 to 2119 there are 150 years. If you want to learn your age in 2119 (born in 1969) your age is 150.
Let's see what will be your age if you born +1 or -1 from that date.