Question

A and B can do a piece of work in 12 days and 15 days respectively. They began to work together but A left after 4 days. In how many more days would B alone complete the remaining work?

• A. 20/3
• B. 25/3
• C. 6
• D. 5

Answer 1

Answer:

C. 6

A (4 days) = 4/12-1/3, Remaining=2/3, B=2/3 x 15=10 days; B alone = 10 - 4 = 6 days