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7th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-11

  • question_answer
    An alloy contains 10 g copper, 20 g zinc and 20 g tin. What is the percentage of copper in the alloy?

    A)  20 %   

    B)  25 %

    C)  30 %               

    D)  15 %

    E)  None of these

    Correct Answer: A

    Solution :

     Not Available   


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