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: given that p is a positive even integer with a positive units digit , if the units digit of p ^ 3 minus the units digit of p ^ 2 is equal to 0 , what is the units digit of p + 4 ?
[A]: 10


[Q]: Problem: what is the lowest positive integer that is divisible by each of the integers 1 through 8 inclusive ?
[A]:
840