A, B and C can alone complete a work in 15, 12, and 18 days, respectively. B and C started the work and after working 6 days, B left and A joined. In how many days was the total work completed?
1
\(\frac{{81}}{{11}}\)
2
\(\frac{{15}}{{11}}\)
3
\(\frac{{51}}{{11}}\)
4
\(\frac{{34}}{{11}}\)