A bookstore that sells print books and ebooks reported that revenue from print book sales in 2016 was up 8 percent from 2015 and revenue from ebook sales in 2016 was down 7 percent from 2015. If total revenues from print book sales and ebook sales in 2016 were up 2 percent from 2015, what is the ratio of revenues from print book sales to ebook sales in 2015?
-
数学PS
-