Q. A can complete 3/5 of a work in 12 days, while B can complete 5/8 of the same work in 15 days. In how many days will A and B together complete the work?
✅ Correct Answer: (B)
10.91 days
Explanation: A's rate = (3/5)/12 = 1/20. B's rate = (5/8)/15 = 1/24. Together = 11/120. Time = 120/11 = 10.91 days.
Explanation by: Deepak Sahoo
A's rate = (3/5)/12 = 1/20. B's rate = (5/8)/15 = 1/24. Together = 11/120. Time = 120/11 = 10.91 days.