To solve this question we have to make deduct these 2 years. 2097 minus 1957 will give the answer.
You are 140 years old.
(1680 months are passed.)
From 1957 to 2097 there are 140 years. If you want to learn your age in 2097 (born in 1957) your age is 140.
Let's see what will be your age if you born +1 or -1 from that date.