Question (39/50)
A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish same work in 6 days, then how much time does A and C together need to finish the work ?(A) 4 Days
(B) 6 Days
(C) 8 Days
(D) 10 Days
Question (40/50)
A and B can do a piece of work in 12 days, B and C in 15 days, while C and A in 20 days. If A, B and C work together, how many days do they need to finish the work ?(A) 5 Days
(B) 8 Days
(C) 10 Days
(D) 12 Days