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

Input: Consider 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 ?

Output: 6.87

Input: Consider Input: Problem: if x = 1 + 2 , then what is the value of x 4 - 4 x 3 + 4 x 2 + 3 ?

Output: 4

Input: Consider Input: Problem: fresh grapes contain 80 % water by weight and raisins obtained by drying fresh grapes contain 25 % water by weight . how many kgs of fresh grapes are needed to get 40 kgs of raisins ?
Output: 150 kgs