At Joel’s bookstore, the current inventory is 40% historical fiction. Of the historical fiction books, 40% are new releases, while 40% of the other books are new releases. What fraction of all new releases are the historical fiction new releases?
Choose the most appropriate option.
A) 4/25 B) 8/23 C) 2/5 D) 8/15 E) 2/5
let there be 100 books in all   Historic fiction books = 40% of total = 40   Other books = 60   New historic fiction = 40% of 40 = 16   Other new books = 40% of 60 = 24   total new books = 24+16= 
<gadget id="calculator">24+16</gadget>
<output>40</output>
40   fraction= 16/40 = 2/5   Ans: 2/5
<result>E</result>
At Joel’s bookstore, the current inventory is 40% historical fiction. Of the historical fiction books, 40% are new releases, while 40% of the other books are new releases. What fraction of all new releases are the historical fiction new releases?