A and B can complete a work in 6 days, B and C can complete the same work in 10 days. A, B and C together can finish it in 4 days. In how many days will A and C together complete it?
1
\(1\frac{2}{7}\) days
2
\(4\frac{2}{7}\) days
3
\(3\frac{2}{7}\) days
4
\(2\frac{2}{7}\) days