Q. A can finish a work in 25 days and B can do it in 20 days. If they work together for 5 days, what fraction of work is left?
β
Correct Answer: (D)
11/20
Explanation: A+B per day = 1/25 + 1/20 = 9/100. In 5 days = 45/100 = 9/20. Left = 11/20.
Explanation by: Ankit Singh
A+B per day = 1/25 + 1/20 = 9/100. In 5 days = 45/100 = 9/20. Left = 11/20.