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    Select the letter-cluster that can replace the question mark (?) in the following series. SUMA, ASUM, MASU, ?
    Question

    Select the letter-cluster that can replace the question mark (?) in the following series.
    SUMA, ASUM, MASU, ?

    A.

    SAUM

    B.

    UASM

    C.

    MAUS

    D.

    UMAS

    Correct option is D

    Series: SUMA, ASUM, MASU, ?
    First term (SUMA): The original term is "SUMA".
    Second term (ASUM): The last letter A moves to the front, resulting in "ASUM".
    Third term (MASU): The last letter M moves to the front, resulting in "MASU".
    Fourth term: Following the same rule, the last letter U should come to the front.
    So, MASU becomes UMAS.
    Correct answer is (d) UMAS.

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