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SSC Sample Paper Mock Test-17 SSC CGL Tear-II Paper-1

  • question_answer
    If  a : b = c : d = e : f = 1 : 2,   then (3a+5c+7e): (3b + 5d + 7f) is equal to

    A) 8 : 7     

    B)  2 : 1     

    C)  1 : 4    

    D)  1 : 2

    Correct Answer: D

    Solution :

    \[\frac{a}{b}=\frac{c}{d}=\frac{e}{f}=\frac{1}{2}\] \[\therefore \]      \[\frac{3a}{3b}=\frac{5c}{5d}=\frac{7e}{7f}=\frac{1}{2}\] \[\therefore \]      \[\frac{3a+5c+7e}{3b+5d+7f}=\frac{1}{2}\]


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