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    (c) 24days


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    c. 24 days is correct ans
    as a+b 1 day work =1/8
    and a one day work =1/12
    so b one day work =(1/8)-(1/12)=4/96
    b total working days =96/4
    24 days

  3. Koutheesh (Admin) S

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    Explanation :
    A &B ‘s one day work = 1/8
    A’s one day work = 1/12
    B’s one day work = 1/8 – 1/12 = 1/24
    So, B alone can complete the work in 24 days

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