1. 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. 8 days
B. 12 days
C. 6 days
D. 4 days
1. 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. 8 days
B. 12 days
C. 6 days
D. 4 days