2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Power, Surds And Indices

Railways Quantitative Aptitude Power, Surds And Indices Sample Paper Surds Indices Sample Test Paper-4

  • question_answer
    The value of \[{{\left( \frac{-1}{216} \right)}^{-\,\frac{2}{3}}}\]  is :

    A)  \[\frac{1}{36}\]

    B)         \[-\frac{1}{36}\]

    C)  \[-36\]              

    D)  36

    Correct Answer: D

    Solution :

    [d] \[{{\left( \frac{-1}{216} \right)}^{-\frac{2}{3}}}={{\left( \frac{-1}{{{6}^{3}}} \right)}^{\frac{-2}{3}}}={{\left( -\frac{1}{6} \right)}^{-2}}={{(-6)}^{2}}=36\]


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