Question

A can paint a wall in 5days while B can do the same in 4 days.If they worked together for 2 days, what part of the wall will be painted?







plz answer it step-by-step​

Answer 1

Answer:

A paint (1/5)part

B paint (1/4)part

Then.

Together work for 2days

(1/5+1/4)

9/20 part