Duffin House, which is now the largest publisher of books sold at the OHaganBooks.com site, prints three kinds of books: paperback, quality paperback, and hardcover. The amounts of paper, Ink, and time on the presses required for each kind of book are given in this table. Paperback Quality Paperback Hardcover Total Available Paper (pounds) 3 2 1 6,000 Ink (gallons) Time (minutes) 2 1 3 6,000 10 10 10 30,000 Profit ($) 1 2 3 The table also lists the total amounts of paper, ink, and time available in a given day and the profits made on each kind of book. How many of each kind of book should Duffin print to maximize profit? Paperback Quality Paperback Hardcover books books books