Multiple Choice Questions on 5 men and 10 boys can do a piece of work in 30 days and 8 men and 12 boys can do the work in 20 days........... for PCS Exam Preparation

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Multiple Choice Questions

5 men and 10 boys can do a piece of work in 30 days and 8 men and 12 boys can do the work in 20 days...........

Quantitative Aptitude (PCS) Time and work
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    5 men and 10 boys can do a piece of work in 30 days and 8 men and 12 boys can do the work in 20 days then the ratio of daily work done by a man to that of boy.

    5:1

    Incorrect Answer

    6:1

    Correct Answer

    7:3

    Incorrect Answer

    4:5

    Incorrect Answer
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    Explanation:

    5m + 10b = 1/30 and 8m + 12b = 1/20
    after solving we get m = 1/200 and b = 1/1200
    so required ratio = (1/200) : (1/1200) = 6:1

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