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18 is not enough (Posted on 2017-06-06) Difficulty: 1 of 5
Let A be any set of 19 distinct integers chosen from the arithmetic progression 1, 4, 7,..., 100.

Prove that there must be two distinct integers in A whose sum is 104.

No Solution Yet Submitted by Ady TZIDON    
Rating: 3.0000 (1 votes)

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  Subject Author Date
SolutionsolutionCharlie2017-06-06 11:22:53
SolutionProof (spoiler)Steve Herman2017-06-06 10:33:08
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