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

  • question_answer
    If \[\frac{1}{x}:\frac{1}{y}:\frac{1}{z}=2:3:5,\] then determine\[x:y:z.\]

    A) 15 : 12 : 8

    B) 15 : 10 : 6

    C) 18 : 10 : 5

    D) 12 : 8 : 9

    Correct Answer: B

    Solution :

    [b] Let \[\frac{1}{x}=2k,\,\,\frac{1}{y}=3k\] and \[\frac{1}{z}=5k\] Then,    \[x=\frac{1}{2k},\]\[y=\frac{1}{3k}\]and \[z=\frac{1}{5k}\] \[\therefore \] \[x:y:z=15:10:6\]


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