2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Simplification

Railways Quantitative Aptitude Simplification Sample Paper Simplification Sample Test Paper-3

  • question_answer
    If \[\frac{1}{x+1}+\frac{1}{x+4}=0\]then x=

    A)  \[2\frac{1}{2}\]            

    B)  \[-2\frac{1}{2}\]

    C)  3                    

    D)  \[-\,3\]

    Correct Answer: B

    Solution :

    [b] \[\frac{1}{x+1}+\frac{1}{x+4}=0\] \[x+4=-(x+1)\] \[2x=-5\] \[x=\frac{-5}{2}=-2\frac{1}{2}\]


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