Question

If A completes a piece of work in 15 days, and B does the same work in 20 days, what fraction of work will be completed in 4 days if they work together?

Answer 1

Answer:

7/15 th part of work

Step-by-step explanation:

part of work done by A in day = 1/15

part of work done by B in a day = 1/20

total part of work done by them in 1 day =1/15 + 1/20

7/60 part of work

work done in 4 days = 7/60 × 4

7/15 part of work

plz mark as brainliest