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SSC Quantitative Aptitude Basic Calculations Question Bank Square and Cube Root (II)

  • question_answer
    By what number should \[\frac{432}{625}\]be divided, so that the resultant is perfect cube?

    A) \[\frac{1}{3}\]

    B) \[\frac{1}{5}\]

    C) \[\frac{2}{5}\]

    D) \[\frac{3}{5}\]

    Correct Answer: C

    Solution :

    [c] \[\therefore \] \[\frac{432}{625}=\frac{2\times 2\times 2\times 2\times 3\times 3\times 3}{5\times 5\times 5\times 5}\] So, it is clear that \[\frac{432}{625}\] must be divided by \[\frac{2}{5},\] then the resultant will be perfect cube.


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