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

[EX Q]: Problem: 12 men work 8 hours per day to complete the work in 10 days . to complete the same work in 8 days , working 15 hours a day , the number of men required ?
[EX A]: 8 days

[EX Q]: Problem: one half of a two digit number exceeds its one third by 7 . what is the sum of the digits of the number ?
[EX A]: e ) 1

[EX Q]: Problem: cost of 2 bats and 3 balls is rs . 1300 . the cost of 3 bats and 2 balls is rs . 1200 . the cost of each balls is more than that of each bat by ?
[EX A]:
100