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SSC Sample Paper Mock Test-10 SSC CGL Tear-II Paper-1

  • question_answer
    The square root of \[({{272}^{2}}-{{128}^{2}})\]is

    A)  256

    B)  200

    C)  240

    D)  144

    Correct Answer: C

    Solution :

    \[?=\sqrt{({{272}^{2}}-{{128}^{2}})}=\sqrt{(272+128)(272-128)}\] \[=\sqrt{400\times 144}\] \[=20\times 12=240\]


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