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

[EX Q]: Problem: a group of men decided to do a work in 55 days , but 15 of them became absent . if the rest of the group did the work in 60 days , find the original number of men ?
[EX A]: 180

[EX Q]: Problem: how many numbers between 200 and 600 are divisible by 4 , 5 and 6 ?
[EX A]: 6

[EX Q]: Problem: a person distributed 10 % of his income to his 2 children each . he deposited 20 % of his income to his wife ' s account . he donated 10 % of remaining amount to an orphan house . finally he has $ 500 . find his total income ?
[EX A]:
$ 1000