If the age of a man is multiplied by 100, and the product is added to 65, the final result will be 3 965.
What is the age of that man?
Work backwards to find the man's age.
Subtract 65 from the final result.
So, the product of the man's age multiplied by 100 is , or 39 hundreds.
Let the missing number be denoted by .
Since (or 39 hundreds), then the man's age is 39.