Is the question clear enough ?

What is the answer to

3

1

2

3

According to the question, the answer should be

1

3

isn't it? But why the correct answer is

2

1

2

What is exactly the sentence below mean?

"Your task is to choose a few of given numbers (1 ≤ few ≤ N) so that the sum of chosen numbers is multiple for N"

Is it already correct that the answer to the above question is {1, 2} where as the minimum set which its sum divisible by 3 is {3}. (I'm not English native)

*Edited by author 07.02.2010 23:20*