Julia wants to have a small but productive orchard. Experienced farmers have told her that if she plants 20 trees, she will get 24 bushels of fruit from each tree. But every additional tree she plants will cause crowding and result in an orchard-wide drop in yield of 1 bushel per tree. How many trees should she plant to get the greatest amount of fruit?
A word problem is solved. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.