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MathNet 2023-part-04 — 191 problems (EN–VI) Question 103

Math Olympiad Vault · MathNet 2023-part-04 — 191 problems (EN–VI)

Question 103

Let $a$, $b$ and $c$ be positive real numbers such that $a + b + c = abc$. Prove that at least one of $a$, $b$ or $c$ is greater than $\frac{17}{10}$.