2022 Polish Junior Math Olympiad First Round P4
Source:
May 21, 2023
combinatorics
Problem Statement
In each square of the table below, we must write a different integer from to , such that the sum of the numbers in each of the eight columns is the same, and the sum of the numbers in the top row is twice the sum of the numbers in the bottom row. Which number from to can be omitted? https://wiki-images.artofproblemsolving.com//2/2b/Zrzut_ekranu_2023-05-22_o_10.28.33.png