Tell the next number

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Look at this series: 12, 11, 13, 12, 14, 13, … What number should come next?
A. 10
B. 16
C. 13
D. 15

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  • 1 Answer(s)

    D. 15

    The progression between terms is -1, +2, -1, +2, -1, …

    stacil Curious Answered on 14th November 2019.
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