A and B can together do a price of work in 15 days. B alone can do it in 20 days. In how many days can A alone do it?
A. 30 days
B. 40 days
C. 45 days
D. 60days
Answer:D
A and B can together do a price of work in 15 days. B alone can do it in 20 days. In how many days can A alone do it?
A. 30 days B. 40 days C. 45 days D. 60days