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ExPrEsSiOnS

Number Theory Level 3

a, b, c, d, and e are five consecutive integers in increasing order of size. Which one of the following expressions is not odd?

ac + e ac + d ab + d ab + c

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Excel in math and science

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It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Aditya Raj

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