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Railways Sample Paper RRB (Group D) Sample Test Paper-13

  • question_answer
    If A :B:C=2:3:4, then \[\frac{A}{B}:\,\frac{B}{C}:\,\frac{C}{A}\] is equal to:

    A)  4 : 9 : 16         

    B)  8 : 9 : 12

    C)  8 : 9 : 16         

    D)  8 : 9 : 24

    Correct Answer: D

    Solution :

    [d] \[Let\,\,A=52x,\,\,B=3x\,\,and\,\,C=4x.\,\,Then,\] \[\frac{A}{B}=\frac{2x}{3x}=\frac{2}{3},\,\,\frac{B}{C}=\frac{3x}{4x}=\frac{3}{4}\,\,and\,\,\frac{C}{A}=\frac{4x}{2x}=\frac{2}{1}\] .\[\Rightarrow \frac{A}{B}:\,\frac{B}{C}:\,\frac{C}{A}=\frac{2}{3}:\frac{3}{4}:\frac{2}{1}=8:9:24.\]


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