Subject

    Quantitative Aptitude

    Topic

    Number

    What should come in place of the question mark (?) in the following number series? 281, 141, 71, 36, 18.5, ?

    ক)
    9.5
    খ)
    9.25
    গ)
    10.75
    ঘ)
    10
    ঙ)
    None of these

    Explanation

    The pattern of the given series is: → 281, → 141 = (281 + 1)/2, → 71 = (141 + 1)/2, → 36 = (71+1)/2, → 18.5 = (36+1)/2, → ? = (18.5+1)/2 → ? = 9.75

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