Question

A and B can together finish a work 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 work?
1 point​

Answer 1

Answer:

in 40 days

Step-by-step explanation:

A+B=30 DAYS

WORKING DAYS TOGHETHER = 20+20

= 40 - B WORKING DAYS

= 40 - 20

= 20 DAYS

A ALONE FINISH WORK IN DAYS = A WORK + B WORK

= 20 + 20

= 40 DAYS