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

Ex Input:
Problem: the owner of a furniture shop charges his customer 25 % more than the cost price . if a customer paid rs . 1000 for a computer table , then what was the cost price of the computer table ?

Ex Output:
80


Ex Input:
Problem: a group of students decided to collect as many paise from each member of group as is the number of members . if the total collection amounts to rs . 46.24 , the number of the member is the group is :

Ex Output:
68


Ex Input:
Problem: what is the greatest positive integer x such that 3 ^ x is a factor of 9 ^ 5 ?

Ex Output:

10