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

Example Input: Problem: a 340 - liter solution of kola is made from 88 % water , 5 % concentrated kola and the rest is made from sugar . if 3.2 liters of sugar , 10 liter of water and 6.8 liters of concentrated kola were added to the solution , what percent of the solution is made from sugar ?
Example Output: 7.5 % .

Example Input: Problem: the difference between the place values of two nines in the numerical 62039295 is
Example Output: 8910

Example Input: Problem: in a certain school , the ratio of boys to girls is 5 to 13 . if there are 64 more girls than boys , how many boys are there ?
Example Output:
40