To solve this question we have to make deduct these 2 years. 2115 minus 1957 will give the answer.
You are 158 years old.
(1896 months are passed.)
From 1957 to 2115 there are 158 years. If you want to learn your age in 2115 (born in 1957) your age is 158.
Let's see what will be your age if you born +1 or -1 from that date.