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

Input: Consider Input: Problem: harold works at a resort from the beginning of march to the end of september . during the month of august this past year , he made 2 times the average ( arithmetic mean ) of his monthly totals in tips for the other months . his total tips for august were what fraction of his total tips for all of the months he worked ?

Output: 1 / 4

Input: Consider Input: Problem: the difference between the place values of two nines in the numerical 62039295 is

Output: 8910

Input: Consider Input: Problem: when the price of a product was decreased by 20 % , the number sold increased by 60 % . what was the effect on the total revenue ?
Output: 28 %