Q: A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job?

Q: A and B can together finish a work in 30 days. They worked together

1.	Q: A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job?
A.	40
B.	50
C.	54
D.	60
Answer» E.