|Spoiler Inside: Solution to Puzzle||SelectShow>|
There is at least one foreign-language picture book (that is not a textbook), at least two picture textbooks (that are not foreign-language), and at least three foreign-language textbooks (that are not picture books). There is at least one foreign-language, picture textbook. There is at least one foreign-language book that is neither a textbook nor a picture book.
By the above, there are at least six books that are foreign-language. It is given that there are six foreign-language books, so those at-least amounts are the actual amounts. This gives:
– 1 foreign-language, picture textbook
Subtracting the applicable multi-category books from the total for the textbook and picture book categories gives the number of books that are that category only. This gives:
Adding up the number of books in all of the categories gives 34 books.