CLAT CLAT Solved Paper-2010

  • question_answer
    Directions From the four answers given, shade the appropriate answer in the space provided for it on the OW Answer Sheet.
    A dishonest shopkeeper uses a weight of 800 g for a kg and professes to sell his good at cost price. His profit is

    A) 20%                            

    B) 21%

    C) 24%                            

    D) 25%

    Correct Answer: D

    Solution :

    Ans.    Suppose goods cost the shopkeeper Rs 100 per kg. But he sells for Rs 100 what cost him Rs 80. So, gain on Rs 80 =100-80 Rs 20 Gain on \[100=\frac{20}{80}\times 100=\frac{100}{4}\,\text{Rs}\,25\] Percentage of gain = 25 % Shortcut Method In this condition Percentage gain \[\frac{\text{Error in weight}}{\text{False weight}}\times 100\] \[=\frac{1000-800}{800}\times 100\] \[=\frac{200}{800}\times 100=25%\]%

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