Q. A can do a job in 12 days, B in 18 days. If they work together for 3 days, how much work will remain?
✅ Correct Answer: (C)
5/12
Explanation: A = 1/12 per day, B = 1/18 per day. Together = 5/36 per day. In 3 days, work done = 15/36 = 5/12. Remaining = 7/12.
Explanation by: Yami Thakur
A = 1/12 per day, B = 1/18 per day. Together = 5/36 per day. In 3 days, work done = 15/36 = 5/12. Remaining = 7/12.