Subject

    Quantitative Aptitude

    Topic

    Average

    The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is :

    ক)
    20
    খ)
    21
    গ)
    23
    ঘ)
    24

    Explanation

    Lot the total number of workers be v Then, 8OOOv = (12000 ×\times 7) + 6000 (v - 7) <=>  2000v = 42000  <=>  v = 21.

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