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SSC Sample Paper SSC CGL - Sample Paper-30

  • question_answer
    \[a:b=-\frac{2}{9}:\frac{1}{3},\] \[b:c=\frac{2}{7}:\frac{5}{14}\] and \[d:c=\frac{7}{10}:\frac{3}{5},\] then \[a:b:c:d\] is

    A) \[4:6:7:9\]                     

    B) \[16:24:30:35\]

    C) \[8:12:15:7\]                  

    D) \[30:35:24:16\]

    Correct Answer: B

    Solution :

    \[\because \] \[a:b=\frac{2}{9}:\frac{1}{3}=2:3=\frac{2}{3}:1\] \[b:c=\frac{2}{7}:\frac{5}{14}=4:5=1:\frac{5}{4}\] \[c:d=\frac{3}{5}:\frac{7}{10}=6:7=1:\frac{7}{6}=\frac{5}{4}:\frac{7}{6}\times \frac{5}{4}\] \[a:b:c:d=\frac{2}{3}:1:\frac{5}{4}:\frac{35}{24}=16:24:30:35\]


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