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

[Q]: Problem: how many integers between 324,700 and 458,600 have tens digit 1 and units digit 3 ?
[A]: 1,33


[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 ?
[A]: 8 days


[Q]: Problem: find the simple interest on $ 1000 for 3 years at 10 % per annum ?
[A]:
$ 300