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No: 05       August 29, 2018


NUMBER SELECTION

NUMBER SELECTION

Given any X integers (not necessarily distinct), if it is always possible to select Y of them whose sum is divisible by 7, what is the minimum value of X and the corresponding value of Y?

Note: X and Y are positive integers.

If the same question were asked for divisibility by 2, the minimum value of X would be 3 and the corresponding value of Y would be 2.

Enter the minimum X, then the corresponding Y without using a space in between.


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