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7th Class Mathematics Data Handling Question Bank Data Handling

  • question_answer
    What is the mean of \[x,\text{ }x+3,\text{ }x+6,\text{ }x+9\]and \[x+12\]?

    A)  \[x+3\]                               

    B)  \[x+6\]  

    C)  \[x+9\]               

    D)         \[x+12\]

    Correct Answer: B

    Solution :

       By definition, Average \[=\frac{x+(x+3)+(x+6)+(x+9)+(x+12)}{5}\]                 \[=\frac{5x+30}{5}=x+6\]


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