Next in the Series…

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What is the next number in the series?

15 29 56 108 208 ?

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  • 1 Answer(s)

    400

    15 x 2 – 1 = 29
    29 x 2 – 2 = 56
    56 x 2 – 4 = 108
    108 x 2 – 8 = 208
    208 x 2 – 16 = 400

    Viji_Pinarayi Expert Answered on 15th April 2023.
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