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

Example Input: Problem: find compound interest on $ 10000 at 15 % per annum for 2 years 4 months , compounded annually .
Example Output: 3886.25

Example Input: Problem: the average of temperatures at noontime from monday to friday is 55 ; the lowest one is 45 , what is the possible maximum range of the temperatures ?
Example Output: 40

Example Input: Problem: for what value of x , is | x – 2 | + | x + 5 | + | x | = 17 ?
Example Output:
5