9, 12, 11, 14, 13, 16, 15, ... choose which pair of numbers comes next?

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Reasoning

asked Sep 07, 2023 at 11:12

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Answer 1

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This is a simple alternating addition and subtraction series. First, 3 is added, then 1 is subtracted, then 3 is added, 1 subtracted, and so on.

answered Sep 07, 2023 at 11:12

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Answer 2

This is a simple alternating addition and subtraction series. First, 3 is added, then 1 is subtracted, then 3 is added, 1 subtracted, and so on.

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