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

Ex Input:
Problem: in the first 20 overs of a cricket game , the run rate was only 4.8 . what should be the run rate in the remaining 30 overs to reach the target of 302 runs ?

Ex Output:
6.87


Ex Input:
Problem: what is the total number of integers between 10 and 50 that are divisible by 2 ?

Ex Output:
19


Ex Input:
Problem: each of the products produced yesterday was checked by worker x or worker y . 0.5 % of the products checked by worker x are defective and 0.8 % of the products checked by worker y are defective . if the total defective rate of all the products checked by worker x and worker y is 0.65 % , what fraction of the products was checked by worker y ?

Ex Output:

1 / 2