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

Example Input: Problem: the owner of a furniture shop charges his customer 10 % more than the cost price . if a customer paid rs . 8800 for a computer table , then what was the cost price of the computer table ?
Example Output: rs . 8000

Example Input: Problem: the diameter of the driving wheel of a bus in 140 cm . how many revolutions per minute must the wheel make in order to keep a speed of 33 kmph ?
Example Output: 125

Example Input: Problem: if x and y are both odd prime numbers and x < y , how many distinct positive r integer factors does 2 xy have ?
Example Output:
8