8. A and B can do a piece of work in 6 days, B and C do it in 10 days – InterviewSolution

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1.	8. A and B can do a piece of work in 6 days, B and C do it in 10 days and Cand A do it in 15 days.(a) In how many days will A, B and C finish it working together?(b) In how many days will A and B finish their working alone?оде
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