Q. A and B together can do a job in 28 days. A alone can finish it in 70 days. In how many days can B alone complete it?
✅ Correct Answer: (D)
56 days
Explanation: 1/28 - 1/70 = 1/56.
Explanation by: Yami Thakur
1/28 - 1/70 = 1/56.