Multiple Choice Questions on 3 men and 5 women do a piece of work in 9 days and 2 men 7 children do the same in 6 days How many w........... for RBI Assistant Exam Preparation

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Multiple Choice Questions

3 men and 5 women do a piece of work in 9 days and 2 men 7 children do the same in 6 days How many w...........

Qunatitative Aptitude (RBI Ast) Time and work
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    3 men and 5 women do a piece of work in 9 days and 2 men 7 children do the same in 6 days. How many women can do as much work as 21 children ?

    5

    Incorrect Answer

    7

    Incorrect Answer

    8

    Incorrect Answer

    10

    Correct Answer
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    Explanation:

    3m+5w = 9days…….(1)6m+10w = 18 days
    2m+7c = 6 days…….(2)6m+21c = 18 days
    21c = 10w

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