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  • April 23, 2020 at 12:57 pm #65752
    arjun Gupta
    Member

    Q. Let  A  consist of 16 elements of the set  {1,2,3, ... ,106}  so that two elements of  A  differ by  6,9,12,15,18, or 21.  Prove that two elements of   A  should differ by 3.

     

     

    April 24, 2020 at 12:30 am #65911
    KOUSHIK SOM
    Member

    we will get back to you soon

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