Billy has to organize a bookshelf. He wants to make sure that each bookshelf has no more than 15 pounds on it.
4 books are less than 1.5 pounds
6 books are 1-1.5 pounds
5 books are over 1.5 pounds,
Given this information, what is the greatest amount of books that can be put in a bookshelf?
— that’s all I can remember from the question, if you have seen a question similar feel free to change things up— I just need to know how to figure out similar problems.