Mathematics, 21.06.2019 22:30
Asurvey of 73 customers was taken at a bookstore regarding the type of books purchased the survey found that 45 customers purchased mysteries 35 purchased science fiction 29 purchased romance novels 19 purchased mysteries and science fiction 16 purchased mysteries and romance novels 12 purchased science fiction and romance novels and 5 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries. b) how many purchased mysteries and science but not romantic novels. c) how many purchased mysteries or science fiction. d) how many purchased mysteries or science fiction but not romantic novels. e) how many purchased exactly two types of books.