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. A, B and C all working together can do it in

A and B can complete a piece of work in 8 days, B and C can do it in 12 days, C and A can do it in 8 days. A, B and C together can complete it in

A and B can do a piece of work in 72 days, B and C can do it in 120 days while A and C can do it in 90 days. In what time can A alone do it?

A and B can do a piece of work in 72 days B and C can do it in 120 days. A and C can do it in 90 days. In how many days, all the three together can do the work?

A and B can do a piece of work in 8 days. B and C can do it in 24 days, while C and A can do it in 8 4/7 days. In how many days can C do it alone?

A and B can do a piece of work in S days. B and C can do it in 24 days while C and A can do it in 8(4/7) days. In how many days can C do it alone?

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

A and B can do a piece of work in 9 days; B and C can do it in 12 days; A and C can do it in 18 days.In how many days will A,B and C finish it working together and separately?