Question

A and B together can finish a piece of work in trail days. if 'A' alone can finish the same work in 20 days, in how many days B alone can finish it?

please answer it correctly if any one i will mark them as a brainlist​

Answer 1

Answer:

30days

Step-by-step explanation:

A and B can do the work in 12 days work in one day= 1/12 part

A can do the work in 20 days work in one day=1/20 part

So,

B's one day work=

=A and B's 1 day work- A's one day work

=1/12-1/20

=(5-3)/60

=1/30

Time taken by B to complete the work=1/ (1/30) days

= 30 days