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

[Q]: Problem: a contractor undertook to do a piece of work in 18 days . he employed certain number of laboures but 9 of them were absent from the very first day and the rest could finish the work in only 6 days . find the number of men originally employed ?
[A]: 4.5


[Q]: Problem: if | 5 x - 20 | = 100 , then find the sum of the values of x ?
[A]: 8


[Q]: Problem: a circular mat with diameter 18 inches is placed on a square tabletop , each of whose sides is 24 inches long . which of the following is closest to the fraction of the tabletop covered by the mat ?
[A]:
3 / 8', 'e ) 5 / 6'