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Banking Quantitative Aptitude Sample Paper Quantitative Aptitude Sample Paper-21

  • question_answer
    Average of first five odd multiples of 3 is                                                                                     [SSC (10+2) 2012]

    A) 12                                

    B) 16

    C) 15        

    D) 21

    Correct Answer: C

    Solution :

    Average of first five odd multiples of 3
    \[=\frac{3+9+15+21+27}{5}\]
    \[=\frac{3\,\,(1+3+5+7+9)}{5}=\frac{3\times 25}{5}=15\]


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