Banking Quantitative Aptitude Sample Paper Quantitative Aptitude Sample Paper-41

  • question_answer
    If the square root of x is the cube root of y, then the relation between x and y is           [SSC (FCI) 2012]

    A) \[{{x}^{3}}={{y}^{2}}\]      

    B) \[{{x}^{2}}={{y}^{3}}\]

    C) \[x=y\]             

    D) \[{{x}^{6}}={{y}^{5}}\]

    Correct Answer: A

    Solution :

    Given, \[\sqrt{x}=\sqrt[3]{y}\]\[\Rightarrow \]\[{{x}^{\frac{1}{2}}}={{y}^{\frac{1}{3}}}\]
    On taking power of 6 both sides,
           \[{{({{x}^{\frac{1}{2}}})}^{6}}={{({{y}^{\frac{1}{3}}})}^{6}}\Rightarrow {{x}^{3}}={{y}^{2}}\]


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