8th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer
    A book was sold for Rs. 27.50 with a profit of 10%. If it were sold for Rs. 25.75, then what would have been the percentage of profit or loss?

    A)  Loss, 3%                    

    B)  Profit, 2%      

    C)  Profit, 3%      

    D)         Loss, 2%        

    Correct Answer: C

    Solution :

    Selling price of book \[\text{=Rs}\text{. 27}\text{.50}\] \[\text{Profit  }\!\!%\!\!\text{  =10 }\!\!%\!\!\text{ }\] \[\therefore \text{C}\text{.P}\text{.=}\frac{100}{110}\times 27.50=Rs.25\] Now, new selling price \[\text{=Rs}\text{. 25}\text{.75}\] \[\therefore \] Profit\[\text{=Rs}\text{.(25}\text{.75-25)=Rs}\text{.0}\text{.75}\] Now, \[\text{Profit  }\!\!%\!\!\text{ =}\frac{0.75}{25}\times 100=3%\]


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