Multiple Choice Questions on A and B can do a piece of work in 20 and 25 days respectively They began to work together but A leav........... for Bihar civil service (BPSC) Preparation

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Multiple Choice Questions

A and B can do a piece of work in 20 and 25 days respectively They began to work together but A leav...........

Quantitative Aptitude (CSC) Time and work
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    A and B can do a piece of work in 20 and 25 days respectively. They began to work together but A leaves after some days and B completed the remaining work in 12 days. Number of days after which A left the job-

    5 7/9 days

    Correct Answer

    6 7/9 days

    Incorrect Answer

    7 7/9 days

    Incorrect Answer

    11 7/9 days

    Incorrect Answer
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    Explanation:

    Explanation :
    (1/20 + 1/25)*T + 12/25 = 1
    We will get T = 52/9 i.e. 5 7/9 days

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