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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-2

  • question_answer
    9 men went to a hotel, 8 of them spent Rs. 30 each over their meal and 9 th spent Rs. 20 more than the average of all the nine. Find the total money spent by them?

    A)  Rs. 290            

    B)  Rs. 292.5  

    C)  Rs. 292

    D)         Rs. 294

    Correct Answer: B

    Solution :

     Let the average of all the nine                                                                                      \[=Rs.\,\,x\] .                                                                                      \[\therefore\]                                                                            \[8\times 30+(x+20)=9x\]                                                                                     \[\Rightarrow\]                                                                    \[9x-x=240+20\Rightarrow 8x=260\]                                                                                     \[\Rightarrow\]                                                                                \[x=\frac{260}{8}\]                                                                                     \[\Rightarrow\]                                                                      \[9x=Rs.\,\,\frac{260\times 9}{8}\]                                                               \[=Rs.\,\,\frac{65\times 9}{2}=Rs.\,\,292.5\]


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