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SSC Sample Paper SSC CGL - Sample Paper-1

  • question_answer
    Of the three numbers, the first is twice the second and the second is 3 times the third. If their average is 100, the largest of the three numbers is

    A)  120                             

    B)  150

    C)  180                 

    D)  300

    Correct Answer: C

    Solution :

    Let the third number be x. \[\therefore \] Second number \[=3x\] First number \[=6x\] \[\therefore \] \[(x+3x+6x)=100\times 3\] \[\Rightarrow \]   \[10x=300\] \[\Rightarrow \]   \[x=30\] \[\therefore \] The largest number \[=6x\]             \[=\text{ }6\times 30\text{ }=\text{ }180\]          


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