A and B together can finish 12.5% of a work in 6/7 days. B and C can together finish one-sixth of the work in 1.6 days. C and A can finish the work in 8 days. In how many days will all of them working together will finish the work?
1
4.5 days
2
4 days
3
5.33 days
4
5 days
5
6 days