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  3. 9th Class
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9th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    The mean of 6 numbers is 20. If one number is deleted, their mean is 15. Find the deleted number.

    A)  45                              

    B)  52                  

    C)  20                              

    D)  36                  

    Correct Answer: A

    Solution :

    Not Available


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