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

Input: Consider Input: Problem: a train 800 m long can cross a pole in 10 sec and then find the speed of the train ?

Output: 28

Input: Consider 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 ?

Output: 456

Input: Consider Input: Problem: 100 people are attending a newspaper conference . 35 of them are writers and more than 38 are editors . of the people at the conference , x are both writers and editors and 2 x are neither . what is the largest possible number of people who are both writers and editors ?
Output: 26