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

  • question_answer
    The children in three societies are in the ratio 2 : 3: 5. If 10 children are increased in each society, the changes to 4 : 5 : 7. The total number of children before the increase were                   

    A) 5                                 

    B)  45     

    C)  50       

    D)  30

    Correct Answer: C

    Solution :

    Number of children = 2x, 3x and 5x Then, \[(2x+10):\,\,(3x+10):(5x+10)=4:5:7\] \[\therefore \]      \[5\,\,(2x+10)=4\,\,(3x+10)\] \[\Rightarrow \]               \[x=5\] Hence, total number of the children before increase \[=10x=10\times 5=50\]            


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