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SSC Sample Paper SSC CGL - Sample Paper-24

  • question_answer
    If \[a:b=1\frac{1}{2}:2\frac{1}{4}\] and \[b:c=2:3\frac{1}{2},\] then what is a : b : c equal to?

    A) 12 : 8 : 21                    

    B) 8 : 21 : 12

    C) 8 : 12 : 21        

    D) 21 : 8 : 12

    Correct Answer: C

    Solution :

    \[a:b=\frac{3}{2}:\frac{9}{4}\] and \[b:c=2:\frac{9}{4}\] \[\Rightarrow \] \[a:b=6:9\] and \[b:c=4:7\]            \[\Rightarrow \] \[a:b=8:12\] and \[b:c=12:21\] \[\Rightarrow \] \[a:b=8:12\] and \[b:c=12:21\] \[\therefore \] \[a:b:c=8:12:21\]


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