SSC Sample Paper SSC CGL - Sample Paper-10

  • question_answer
    When the price of eggs is reduced by 20%, it enables a man to buy 20 more eggs for Rs. 40. The reduced price per egg is

    A)  35 paise                       

    B)  40 paise

    C)  50 prise           

    D)  56 paise

    Correct Answer: B

    Solution :

    Let original rate = Rs. x per egg. New rate = 80% of \[x=Rs.\frac{4x}{5}\] Original Quantity for \[Rs\,40.=\frac{40}{x}\] New quantity \[=40\times \frac{5}{4x}=\frac{50}{x}\] \[\therefore \]      \[\frac{50}{x}-\frac{40}{x}=20\] \[\Rightarrow \]   \[\frac{10}{x}=20\] \[\Rightarrow \]   \[x=\frac{10}{20}=\frac{1}{2}\] \[\therefore \] Reduced price             \[=80%\,\,\text{of}\,\,Rs.\,\frac{1}{2}\]             \[=\frac{4}{5}\times \frac{1}{2}=Rs.\frac{2}{5}\]             \[=\frac{2}{5}\times 100=40\,\text{paise}\]

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