23) A and B can do a piece of work in 30 days, while B and C can do the same
work in 24 days and C and A in 20 days. They all work together for 10
days when B and C leave. How many days more will A take to finish the
work?

- A)18 days
- B)24 days
- C)30 days
- D)36 days

**Answer: **
A