Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2023-part-05 — 191 problems (EN–VI) Question 186

Math Olympiad Vault · MathNet 2023-part-05 — 191 problems (EN–VI)

Question 186

Each cell of a $4 \times 4$ table contains one of the numbers $1$ or $2$. For every row we calculate the sum of its entries and for every column we calculate the product of its entries. Can the eight obtained results be all different?