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3 out of 5 (Posted on 2022-07-15) Difficulty: 2 of 5
Please prove the following statement:

In every set of 5 integers one can always select 3 members such that their sum is divisible by 3.

Source: Crux Mathematicorum

REM: The original puzzle specifies positive integers. Considering this word as redundant I have erased it.
Do you agree?

No Solution Yet Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionPossible Solutionbroll2022-07-16 07:29:06
SolutionPuzzle SolutionK Sengupta2022-07-15 15:22:22
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