8th Class Mathematics Comparing Quantities Question Bank Commercial Mathematics

  • question_answer
    The average of the first nine prime numbers is ?????

    A) 9                     

    B)          11

    C)  \[11\frac{1}{9}\]                   

    D)           \[11\frac{2}{9}\]

    Correct Answer: C

    Solution :

     \[\frac{2+\,3+5+7+11+13+17+19+23}{9}\] \[=\frac{100}{9}\,=11\frac{1}{9}\]


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