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Railways RRB (Assistant Loco Pilot) Solved Paper-2013

  • question_answer
    The percentage of loss when an article is sold at Rs. 50 is the same as that of the profit when it is sold at Rs. 70. The above- mentioned percentage of profit or loss on the article is:

    A) \[10%\]                         

    B) \[16\frac{2}{3}%\]

    C) \[20%\]                         

    D) \[22\frac{2}{3}%\]

    Correct Answer: B

    Solution :

     Let percentage of profit or loss in on the article be\[x\] \[\because \]       \[\frac{50\times 100}{100-x}=\frac{70\times 100}{100+x}\] \[\Rightarrow \]   \[5000(100+x)=7000(100-x)\] \[\Rightarrow \]   \[500+5x=700-7x\] \[\Rightarrow \]   \[12x=200\] \[\therefore \]      \[x=\frac{200}{12}=16\frac{2}{3}%\]


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