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

Ex 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 ?

Ex Output:
70


Ex Input:
Problem: if each side of a square is increased by 325 % in length , find the percentage change in its area ?

Ex Output:
956.25 %


Ex Input:
Problem: if the ratio of the sum of the first 6 terms of a g . p . to the sum of the first 3 terms of the g . p . is 343 , what is the common ratio of the g . p ?

Ex Output:

7