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SSC Quantitative Aptitude Average Question Bank Average (I)

  • question_answer
    The average monthly salary of the workers in a workshop is Rs. 8500. If the average monthly salary of 7 technicians is Rs. 10000 and average monthly salary of the rest is Rs. 7800, the total number of workers in the workshop is

    A) 18

    B) 20

    C) 22

    D) 24

    Correct Answer: C

    Solution :

    [c] Let the total number of workers be x. Then, \[(7\times 10000)+(x-7)\times 7800=8500x\] \[\Rightarrow 70000+7800x-54600=8500x\] \[\Rightarrow 700x=15400\]\[\Rightarrow \]\[x=22\] \[\therefore \] Total number of workers in the workshop \[=22\]


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