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

Example Input: Problem: what is the range of all the roots of | x ^ 2 - 4 | = x ?
Example Output: 3

Example Input: Problem: a grocer is storing soap boxes in cartons that measure 25 inches by 42 inches by 60 inches . if the measurement of each soap box is 7 inches by 6 inches by 10 inches , then what is the maximum number of soap boxes that can be placed in each carton ?
Example Output: 150

Example Input: Problem: an article is bought for rs . 1200 and sold for rs . 800 , find the loss percent ?
Example Output:
33 %