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AMO 2021 — Secondary 1 (Grade 7) Question 23

AMO · AMO 2021 — Secondary 1 (Grade 7)

Question 23

How many three-digit natural numbers $n$ satisfy all three conditions: $n-14$ is divisible by 7, $n-24$ is divisible by 8, and $n-36$ is divisible by 9?

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