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Railways R.R.C. (Patna) Solved Paper Held on 1st_Shift 23-11-2014

  • question_answer
    A trader lists his articles 20% above cost price and allows a discount of 10%. His gain per cent is?

    A) 10%                             

    B) 8%

    C) 6%                               

    D) 5%

    Correct Answer: B

    Solution :

    Suppose his gain per cent is x Then,    \[20=\frac{(x+10)\times 100}{100-10}\] \[20\times 90=(x+10)\times 100\]                         \[x+10=18\] \[x=8%\]


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