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

Example Input: Problem: what will be the percentage increase in the area of the cube ' s surface if each of the cube ' s edges grows by 20 % ?
Example Output: 44 %

Example Input: Problem: a swimmer can swim in still water at 4 km / h . if the speed of the water current is 2 km / h , how many hours will the swimmer take to swim against the current for 5 km ?
Example Output: 2.5

Example Input: Problem: what is the divisor ? the dividend is 76 , the remainder is 8 , the quotient is 4
Example Output:
17