Question
What number should come next?
7 9 66 12 14 66 17
7 9 66 12 14 66 17
Answer: Option A
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This is an alternating addition series with repetition, in which a random number, 66, is interpolated as every third number. The regular series adds 2, then 3, then 2, and so on, with 66 repeated after each "add 2" step.
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