Railways R.R.C. (Hajipur) Solved Paper Held on 1st Shift 30-11-2014

  • question_answer
    \[If\,\,\frac{P}{Q}=7,\,\,then\,\,\frac{P+Q}{P-Q}=?\]

    A) \[\frac{7}{8}\]                          

    B) \[\frac{1}{3}\]

    C) \[\frac{2}{3}\]                          

    D) \[\frac{4}{3}\]

    Correct Answer: D

    Solution :

    If \[\frac{P}{Q}\] = 7 Then,?\[=\frac{P+Q}{P-Q}=\frac{\frac{P}{Q}+1}{\frac{P}{Q}-1}\] \[=\frac{7+1}{7-1}=\frac{8}{6}\] \[=\frac{4}{3}\]


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