Q. A can do a work in 10 days. B is 25% less efficient than A. If both work together, the work will be completed in:
✅ Correct Answer: (A)
5.71 days
Explanation: B takes 40/3 days. Combined rate = 1/10 + 3/40 = 7/40. Time = 40/7 = 5.71 days.
Explanation by: Deepak Sahoo
B takes 40/3 days. Combined rate = 1/10 + 3/40 = 7/40. Time = 40/7 = 5.71 days.