A can do a work in 16 days, B can do the same work in 24 days, and C can do it in 32 days. If they all work together, how long will it take to complete the work?
Answer: B. 8 days
The combined work rate is 1/16 + 1/24 + 1/32 = 13/48. Therefore, they will complete the work in 48/13 days, which is approximately 3.69 days.