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: the average of first 10 odd numbers is ?
[A]: 10


[Q]: Problem: what is the probability of getting exactly 2 heads in a single throw of four fair coins ?
[A]:
3 / 8