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10th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    The mean of \[x-5y,x-3y,x-y,x+y,x+3y\] and \[x+5y\] is 22. Then, the value of x is

    A)  13                               

    B)  22

    C)  6y                               

    D)  3y

    Correct Answer: B

    Solution :

    (b): \[\frac{x-\bcancel{5y}+x-\bcancel{3y}+x-\bcancel{y}+x+\bcancel{y}+x+3y+x+\bcancel{5y}}{5}\]\[=22\] \[\Rightarrow \frac{5x}{5}=22\Rightarrow x=22\]


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