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

  • question_answer
    If the mean of five observation \[x,\]\[x+2,\]\[x+4,\]\[x+6\]and \[x+8\] is 11, then the mean of first three observations is:

    A)  6                                

    B)  9

    C)  11                               

    D)  13

    E)  None of these

    Correct Answer: B

    Solution :

     Not Available


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