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SSC Sample Paper SSC CGL - Sample Paper-30

  • question_answer
    In a family of 8 adult and some minors, an average consumption of rice per head per month is 10.8 kg, while the average consumption for adult is 15 kg per head and for minors 6 kg per head. The number of minors in the family is

    A) 8                                 

    B) 6        

    C) 7         

    D) 9

    Correct Answer: C

    Solution :

    Let the number of minors in the family be x. \[\therefore \]      \[8\times 15+x\times 6=(8+x)10.8\] \[\Rightarrow \]   \[120+6x=86.4+10.8x\] \[\Rightarrow \]   \[4.8x=33.6\] \[\Rightarrow \]   \[x=7\]             


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