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MathNet 2022-part-05 — 197 problems (EN–VI) Question 191

Math Olympiad Vault · MathNet 2022-part-05 — 197 problems (EN–VI)

Question 191

Find the three-digit positive integer $abc$ whose representation in base nine is $\underline{b}\ \underline{c}\ \underline{a}$ base $9$, where $a$, $b$, and $c$ are (not necessarily distinct) digits.