Q. A can do a work in 10 days. B can do it in 15 days. They work alternately starting with A. In how many days will the work be completed?
✅ Correct Answer: (B)
6 days
Explanation: A+B work in 2 days = 1/10 + 1/15 = 1/6 → full work in 6 days.
Explanation by: Admin
A+B work in 2 days = 1/10 + 1/15 = 1/6 → full work in 6 days.