A can complete $$\frac{2}{3}$$ of a work in 10 days and B can complete $$\frac{4}{5}$$ of the same work in 8 days. They work together for 5 days. The remaining work is completed by alone in 6 days. In how many days C alone can complere 75% of the same work?

A

27

B

36

C

18

D

30