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

Input: Consider Input: Problem: what is the probability of getting a queen or spade from a set of cards ?

Output: 4 / 13


Input: Consider Input: Problem: a large box contains 20 small boxes and each small box contains 32 chocolate bars . how many chocolate bars are in the large box ?

Output: e ) 64


Input: Consider Input: Problem: 800 men have provisions for 20 days . if 200 more men join them , for how many days will the provisions last now ?


Output: 16