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    Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?P3WJ, R10TO, T24QT,
    Question

    Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?
    P3WJ, R10TO, T24QT, V45NY, ?

    A.

    X67KD

    B.

    X67KC

    C.

    X73LD

    D.

    X73KD

    Correct option is D

    Given: P3WJ, R10TO, T24QT, V45NY, ?
    Logic: First letter increases by 2, number increases by differences of 7, 14, 21, etc., third letter decreases by 3, and fourth letter increases by 5.
    First letter: P+2=R; R+2=T; T+2=V; V+2=X
    Number: 3+7=10; 10+14=24; 24+21=45; 45+28=73
    Third letter: W−3=T; T−3=Q; Q−3=N; N−3=K
    Fourth letter: J+5=O; O+5=T; T+5=Y; Y+5=D
    From the above next alphanumerical number will be X73KD
    Thus, the correct answer is (d)

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