Q. A can do a piece of work in 15 days and B can do it in 10 days. In how many days can they complete the work together?
✅ Correct Answer: (B)
6 days
Explanation: Combined 1-day work = 1/15 + 1/10 = 1/6. Therefore, time = 6 days.
Explanation by: Krishna Sharma
Combined 1-day work = 1/15 + 1/10 = 1/6. Therefore, time = 6 days.