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SSC Quantitative Aptitude Ratio and Proportion Question Bank Ratio and Proportion (II)

  • question_answer
    The third proportional of 12 and 18 is

    A) 3

    B) 6

    C) 27

    D) 144

    Correct Answer: C

    Solution :

    [c] Let third proportional of 12 and 18 be x. Then, 12 : 18 :: 18 : x \[\Rightarrow \]   \[x=\frac{18\times 18}{12}=27\]


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