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    Select the alphanumeric cluster from among the given options that can replace the question mark (?) in the following series.D4C3B2A1 , H8G7F6E5 , L12K
    Question

    Select the alphanumeric cluster from among the given options that can replace the question mark (?) in the following series.

    D4C3B2A1 , H8G7F6E5 , L12K11J10I9 , ?

    A.

    Q17P16O15N14

    B.

    M15N16O17P18

    C.

    P16O15N14M13

    D.

    P16R15S14T13

    Correct option is C

    Given:

    D4C3B2A1 , H8G7F6E5 , L12K11J10I9 , ?

    Position of Alphabets:

    Logic that follows is given as:

    D +4 H  +4  L  +4    =    P

    4 +4  8  +4  12   +4   =  16

    C +4  G +4   K   +4   =   O

    3 +4  7  +4   11   +4   =  15

    B +4  F +4   J     +4   =  N

    2 +4  6 +4   10   +4   =  14

    A +4 E +4   I     +4    =  M

    1 +4 5  +4   9     +4   =  13

    Hence, option (c) is the correct answer.

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