The task is to generate the correct answer for a given math problem.

Example Input: Problem: in a circuit board factory , all circuit boards that pass a verification process are certified . every board that fails the verification process is indeed faulty , but 1 / 8 of those that pass are also faulty . approximately how many faulty circuit boards exist in a group of 3,200 circuit boards where 64 fail inspection ?
Example Output: 456

Example Input: Problem: one half of a two digit number exceeds its one third by 7 . what is the sum of the digits of the number ?
Example Output: e ) 1

Example Input: Problem: the greatest number that divides 690 and 875 leaving remainders 10 and 25 respectively is :
Example Output:
170