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

Example Input: Problem: paul ' s income is 40 % less than rex ' s income , quentin ' s income is 20 % less than paul ' s income , and sam ' s income is 40 % less than paul ' s income . if rex gave 60 % of his income to sam and 40 % of his income to quentin , quentin ' s new income would be what fraction of sam ' s new income ?
Example Output: 11 / 12

Example Input: Problem: what is the remainder when 1201 × 1202 × 1205 × 1207 is divided by 6 ?
Example Output: 4

Example Input: Problem: a shopkeeper sells 500 metres of cloth for rs . 18000 at a loss of rs . 5 per metre . find his cost price for one metre of cloth ?
Example Output:
4