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

Example Input: Problem: a , b and c start a business each investing 20,000 . after 5 months a withdrew 5000 , b withdrew 4000 and c invests 6000 more . at the end of the year , a total profit of 69,900 was recorded . find the share of b .
Example Output: 28,200

Example Input: Problem: what is the sum of the odd integers from 55 to 75 , inclusive ?
Example Output: 71

Example Input: Problem: if the length of an edge of cube p is thrice the length of an edge of cube q , what is the ratio of the volume of cube q to the volume of cube p ?
Example Output:
1 / 27', 'e ) 1 / 9'