# Find The Number of Days in Which C Alone can do The Work? If

A and B together can do a piece of word in 30 days. B and C together can do it in 20 days. A starts the work on it for 5 days, then B takes up and works for 15 days. Finally C finished the work in 18 days. The number of days in which C alone can do the work when doing is separately is:

- 24 days
- 120 days
- 60 days
- 40 days