8th Class Mathematics Squares and Square Roots Question Bank Square and Square Roots

  • question_answer 19) Find the value of 'y' such that \[\sqrt{188+\sqrt{53+\sqrt{y}}}=14\]

    A)  121     

    B)  11            

    C)  1331                           

    D)  161

    Correct Answer: A

    Solution :

    (a): \[188+\sqrt{53+\sqrt{y}}=196\] \[=\sqrt{53+\sqrt{y}}=8\] Squaring, \[53+\sqrt{y}=64\Rightarrow \sqrt{y}=11\] \[y=121.\]                    

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