#13   I had at total of 335 books. I donated 55 books. I currently have a book stand with 3 shelves. Each shelve holds 35 books. How many books are on the shelves in total ? How many  more shelves would my dad need to build in order for the rest of the books to to be put on shelves?

Fascinating Fact:  The Library of Congress is the largest library in the world, with more than 164 million items on approximately 838 miles of bookshelves. The collections include more than 38 million books and other printed materials, 3.6 million recordings, 14 million photographs, 5.5 million maps, 8.1 million pieces of sheet music and 70 million manuscripts.