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Omni-MATH / In the 5×5 grid shown, 15 cells contain X's and 10 cells are empty. What is the smallest number of X's that must be moved so that each row and each column contains exactly three X'… · Discussion

Discussing In the 5×5 grid shown, 15 cells contain X's and 10 cells are empty. What is the smallest number of X's that must be moved so that each row and each column contains exactly three X'… · Omni-MATH

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