Question

An artist is weaving a rectangular wall hanging. The wall hanging is already 18 inches long, and the artist plans to weave an additional 2 inches each day. The finished wall hanging will be 60 inches long. How many days will it take the artist to finish the wall hanging?

Answer 1

The first thing to do in this case is to find the number of inches of wall hanging that the artist needs to weave.
 We have then
 60-18 = 42 inches
 Then, as each day the artist can weave two inches, then the number of days will
 n = (42) / (2) = 21 days
 answer
 it will take 21 days the artist to finish the hanging wall