7th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer The C.P. of 30 articles is equal to the S.P. of 15 articles. What is the gain%?

    A) \[100%\]

    B) \[20%\]

    C) \[30%\]                        

    D) \[50%\]

    Correct Answer: A

    Solution :

    (a) Gain% \[\text{=}\frac{\text{No}\text{.}\,\text{of}\,\,\text{articles}\,\text{on}\,\text{C}\text{.P}\text{.-No}\,\,\text{of}\,\text{articles}\,\,\text{on}\,\text{S}\text{.P}}{\text{No}\text{. of article on S}\text{.P}\text{.}}\text{ }\!\!\times\!\!\text{ 100 }\!\!%\!\!\text{ }\]\[=\frac{30-15}{15}\times 100%=100%\]                         

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