Question

a and b can together finish a work in 30 days they worked at it for 20 days and then b left the remaining work was done by a alone in 20 more days in how many days can a alone do it​

Answer 1

Answer:

Step-by-step explanation:

Work done by a+b in 30 days .

B left after 20 days .

So the total work done is

20/30=2/3

Remaining work =1/3

If a can complete 1/3 of work in 20 days so .

To complete 1 work he needs 20*3=60 days