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    Question

    (Q.46-50): What should come in place of question mark (?) in the following number series?

    15 7 6 7.5 13

    ?
    A 22.5 Correct Answer Incorrect Answer
    B 55 Correct Answer Incorrect Answer
    C 37.5 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer
    E 42.5 Correct Answer Incorrect Answer

    Solution

    x0.5 - 0.5, 1 - 1, x1.5 - 1.5, 2 - 2, x2.5 - 2.5

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