The school bought back a total of 1,160 scientific books, literary books and comic books, of which the ratio of scientific books to literary books was 3:4, and literary books were 50% more than comic books. How many comic books did the school buy?
学校买回科技书、文艺书和连环画共1160本，其中科技书与文艺书的比3：4，文艺书比连环画多50%，学校买来连环画多少本？
<result>320</result>