Multiple Choice Questions on A man can do a piece of work in 30 hours If he works with his son then the same piece of work is fin........... for Combined Bank PO and Clerical Exams Preparation

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Multiple Choice Questions

A man can do a piece of work in 30 hours If he works with his son then the same piece of work is fin...........

Quantitative Aptitude(Banking) Time and work
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    A man can do a piece of work in 30 hours. If he works with his son then the same piece of work is finished in 20 hours. If the son works alone then he can do the work in ?

    60

    Correct Answer

    50

    Incorrect Answer

    25

    Incorrect Answer

    10

    Incorrect Answer
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    Explanation:

     

    Man + Son = 3
    2 + Son = 3
    Son’s efficiency = 3 – 2
    = 1

    So the son will take 60 hours to finish the same piece of work.

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