Q. A can do a job in 35 days and B in 50 days. They start together, but A leaves after 10 days. How long will B take to finish the remaining work?
✅ Correct Answer: (C)
30 days
Explanation: A’s work in 10 days = 10/35 = 2/7. Remaining = 5/7. B per day = 1/50 → (5/7)/(1/50) = 250/7 = 35.7 ≈ 30 days.
Explanation by: Ankit Singh
A’s work in 10 days = 10/35 = 2/7. Remaining = 5/7. B per day = 1/50 → (5/7)/(1/50) = 250/7 = 35.7 ≈ 30 days.