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    Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which
    Question

    Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
    (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)​

    A.

    QR−TU

    B.

    FG−HL

    C.

    WX−ZA

    D.

    DE−GH

    Correct option is B

    Logic: Letters are decreased by 3.

    Facts & Explanation (Operation-wise):
    QR–TU: Q + 3 = T, R + 3 = U

    FG–HL: F + 2 = H, G + 5 = L (unequal difference)

    WX–ZA: W + 3 = Z, X + 3 = A (cyclic continuation)

    DE–GH: D + 3 = G, E + 3 = H

    Final Answer: FG–HL does not follow the same +3 pattern.
    Final Correct Option: (b)​

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