Multiple Choice Questions on A contractor undertakes to build a wall in 50 days He employs 50 people for the same However after 2........... for IBPS RRB - Officers Exam Preparation

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Multiple Choice Questions

A contractor undertakes to build a wall in 50 days He employs 50 people for the same However after 2...........

Quantitative Aptitude(IBPS RRB PO) Time and work
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    A contractor undertakes to build a wall in 50 days. He employs 50 people for the same. However after 25 days, he finds that only 40% of the work is complete. How many more men need to be employed to complete the work in time?

    25

    Correct Answer

    30

    Incorrect Answer

    35

    Incorrect Answer

    20

    Incorrect Answer
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    Explanation:

    by chain rule=>M1*D1*W2=M2*D2*W1
    =>M2=(50*25*0.6)/(25*0.4)=75M
    =>75-50=25

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