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Can you solve this?

Number Theory Level 3

In how many ways can three different integers be selected from the numbers 1 to 12,so that their sum can be exactly divided by 3?

84 56 76 64

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Excel in math and science

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It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

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including olympiad champions, researchers, and professionals.

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by Anik Mandal

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