Multiple Choice Questions on Some people together completed a work 60 days if 8 new people join the group work is finished 10 day........... for CDS Exam Preparation

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Multiple Choice Questions

Some people together completed a work 60 days if 8 new people join the group work is finished 10 day...........

Quantitative Aptitude (CDS) Time & distance
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    Some people together completed a work 60 days, if 8 new people join the group, work is finished 10 days before.

    At the starting time, how many people are there?

    30

    Incorrect Answer

    40

    Correct Answer

    35

    Incorrect Answer

    45

    Incorrect Answer
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    Explanation:

    Let x person does work in 60 days

    X+8 person finished in 50 days

    One person does in 60x days

    (X+8)×50(1/60x) =1

    50x+400=60x

    X=40 person

    By: bhavesh kumar singh
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