Q. A can complete a work in 9 days. B is 80% as efficient as A. In how many days can B complete the work?
✅ Correct Answer: (B)
11.25 days
Explanation: B's efficiency = 80% of A. Time = 9/0.8 = 11.25 days.
Explanation by: Deepak Sahoo
B's efficiency = 80% of A. Time = 9/0.8 = 11.25 days.