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11th Class Mathematics Sample Paper Mathematics Olympiad - Sample Paper-12

  • question_answer
    The average marks of boys in a class is 52 and that of girls is 42. The average marks of boys and girls combined is 50. The percentage of boys in the class is

    A)  40%                

    B)  20%        

    C)  80%                

    D)  60%

    Correct Answer: C

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