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     EduGorilla 
    Keymaster
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    A and B can do a piece of work in 12 days. B and C can do it in 15 days. C and A can do it in 20 days. In how many days will B alone finish the work?

    Options :-

    1. 30 days
    2. 20 days
    3. 60 days
    4. None of the above
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