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Discussion :: Surds and Indices

  1. If 42x = Aptitude Surds and Indices, then x is

    2. A.
    5/4
    B.
    4/5
    C.
    3/5
    D.
    None of these

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    Answer : Option D

    Explanation :

    42x =
    (22x)2 =
    24x=
    24x = 2-5

    Since the base are same
    4x= -5
    x =

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