8th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    Articles are bought at 42 paise a dozen and sold at 85 paise a score (A group of twenty). The profit per cent is

    A) 21%                      

    B) 213%

    C) 33. %                                

    D) 32%

    Correct Answer: B

    Solution :

    85 paise a score would be \[\frac{a}{b}=\frac{c}{d}\]paise a dozen as selling price. \[\frac{a-b}{b}=\frac{c-d}{d}\]


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