Multiple Choice Questions on A contract is to be completed in 56 days and 104 men were set to work each working 8 hours a day Aft........... for Bihar civil service (BPSC) Preparation

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Multiple Choice Questions

A contract is to be completed in 56 days and 104 men were set to work each working 8 hours a day Aft...........

Quantitative Aptitude (CSC) Time and work
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    A contract is to be completed in 56 days and 104 men were set to work each working 8 hours a day. After 30 days, 2/5 of the work is completed. How many additional men may be employed, so that the work may be completed in time, each man now working 9 hours day?

    60

    Incorrect Answer

    56

    Correct Answer

    70

    Incorrect Answer

    42

    Incorrect Answer
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    Explanation:

    Therefore, 104 men do 2/5 work in 30 days working 8hrs/day

    or, 1 men will do = 104*30*8*2/5

    or, 3/5 work will be completed by= 104*30*8*2*5 /26*9*3*5= 160men.

    so, additional men reqd= 160-104= 56 men.

    Hence, option 2 is the correct answer.

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