Question

A can do a piece of work in 15 days and b in 20 days in how many days they can do it, if they work together

Answer 1

Answer:

Step-by-step explanation:

A=15

B=20

So days required to finish a piece of work by A and B combined=B-A

=20-15

=5 days

Answer 2

so this is the answer . hope it helps u