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Choosing the right number (Posted on 2018-02-13) Difficulty: 2 of 5
From a set of 2n+1 consecutive integers a certain number, say x, is selected in a way that the remaining n pairs can be arranged as couples having the same sum.

What are all the possible values of x making such task doable?

See The Solution Submitted by Ady TZIDON    
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re(2): Not feeling literal Comment 6 of 6 |
(In reply to re: Not feeling literal by Ady TZIDON)

Well, in that case, I agree with Armando.
  Posted by Steve Herman on 2018-02-14 10:04:52

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