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Railways R.R.C. (Gorakhpur) Solved Paper Held on 2nd Shift 30-11-2014

  • question_answer
    If x is a negative number and\[{{x}^{2}}+4>20\], which of the following is correct?

    A) \[x\,\,>\,\,-4\]    

    B) x < - 4

    C) \[x\,\,>\,\,-1\]                

    D) \[x\,\,>\,\,\text{ }1\]

    Correct Answer: A

    Solution :

    \[{{x}^{2}}+4\,\,>\,\,20\] \[{{x}^{2}}\,\,>\,\,16\] \[x\,\,>\,\,\pm \,\,4\]  


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