Multiple Choice Questions on A and B can complete a work in 20 days and A alone can do the work in 30 days How many days can B co........... for CDS Exam Preparation

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Multiple Choice Questions

A and B can complete a work in 20 days and A alone can do the work in 30 days How many days can B co...........

Quantitative Aptitude (CDS) Time and work
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    A and B can complete a work in 20 days and A alone can do the work in 30 days. How many days can B complete the work?

    40

    Incorrect Answer

    50

    Incorrect Answer

    60

    Correct Answer

    70

    Incorrect Answer
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    Explanation:

     B can complete the work =20×30/30-20

                                            =600/10=60 days

    By: bhavesh kumar singh
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