Q. A, B and C can complete a work in 10, 15 and 30 days respectively. In how many days can they complete the work together?
✅ Correct Answer: (B)
5 days
Explanation: Combined 1-day work = 1/10 + 1/15 + 1/30 = 1/5. Therefore, time = 5 days.
Explanation by: Krishna Sharma
Combined 1-day work = 1/10 + 1/15 + 1/30 = 1/5. Therefore, time = 5 days.