A and B together can do a piece of work in 12 days, B and C can do it in 20 days while C and A can do it in 15 days. In how many days A B andC all can working together can finish the work?
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6 days is the answer of this questions let
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A and B together can do a peace of work in 12 days,which B and C together can do in 16 days.After A has been working at it for 5 Days and B for 7 Days,C finishes in 13 days.In how many days C alone will do the work?
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