Q. A can complete a work in 9 days. B can complete it in 18 days. If A works alone for 3 days, how many days will B take to finish the remaining work?
✅ Correct Answer: (C)
6 days
Explanation: A does 1/3 work in 3 days → remaining 2/3. B's rate = 1/18 → time = 12 days.
Explanation by: Admin
A does 1/3 work in 3 days → remaining 2/3. B's rate = 1/18 → time = 12 days.