Question

Aschalew is able to do apiece of work in 15 days and Abay can do the same work in 20 daya. if they can work together for 4 days, what is the fraction of the work left?​

Answer 1

8/15

Explanation:

1/15(4 + 1/20(4)

4/15 + 4/20 I can reduce 4/20 to 1/5

4/15 + 1/5

4/15 + 3/15 = 7/15

Together they can get 7/15 of the job done. 15/15 - 7/15 is 8/15.

That means that they have 8/15 left to do.

Helping in the name of Jesus.