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CLAT CLAT Solved Paper-2012

  • question_answer
    If the value of a sphere is divided by its surface area, we obtain 27 cm. the radius of the sphere is

    A)  9 cm                          

    B)  81 cm

    C)  27 cm            

    D)  24 cm

    Correct Answer: B

    Solution :

    Ans.  Let radius of the sphere is r. Then according to the questions, \[\frac{\frac{4}{3}\pi {{r}^{3}}}{4\pi {{r}^{2}}}=27\] \[\Rightarrow \]            \[\frac{r}{3}=27\] \[\therefore \]    \[r=81\,\,\text{cm}\]


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