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 it in 6 days. A and C together will do it in?
A. 4 days
B. 6 days
C. 8 days
D. 12 days
Answer:C
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 it in 6 days. A and C together will do it in?
A. 4 days B. 6 days C. 8 days D. 12 days