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

Example Input: Problem: a question paper has 2 parts , a & b , each containing 8 questions . if a student has to choose 8 from part a & 4 from part b , in how many ways can he choose the questions ?
Example Output: 70

Example Input: Problem: irin , ingrid and nell bake chocolate chip cookies in the ratio of 9.18 : 5.17 : 2.05 . if altogether they baked a batch of 148 cookies , what percent of the cookies did ingrid bake ?
Example Output: 31.7 %

Example Input: Problem: how many multiples of 2 are there between 1 and 58 , exclusive ?
Example Output:
2