Question

last year the sales at a bookstore were 75% fiction books, and 25% nonfiction books. The average coss of a fiction book was $15. The average cost of a nonfiction book was $16. What was the averge costs of all fiction and non-fiction books sold at tthe bookstore last year? enter your answer as a decimal in the box

Answer 1

[75 x 15 + 25 x 16] / (75+25) = 1525/100
=$15.25