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No doubles (Posted on 2022-05-02) Difficulty: 2 of 5
Can you create a subset of (1, 2, 3, ..., 3k) such that none of its 2k-1 members is twice the value of another?

Either provide such a set or show none exists.

Inspired by: Austrian-Polish Math. Competition.

See The Solution Submitted by Ady TZIDON    
Rating: 4.5000 (2 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
A final note on the original questionbroll2022-05-03 06:16:53
re(3): Idea, no proofbroll2022-05-03 03:07:36
re: Another Ideabroll2022-05-03 02:59:24
re(3): Idea, no proofbroll2022-05-02 23:23:29
re(3): Idea, no proofKenny M2022-05-02 15:22:59
re(2): Idea, no proofJer2022-05-02 13:35:07
Some ThoughtsAnother IdeaBrian Smith2022-05-02 10:35:31
re: Idea, no proofbroll2022-05-02 09:35:53
Possible Solutionbroll2022-05-02 08:21:47
Some ThoughtsIdea, no proofJer2022-05-02 07:32:24
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