At Joel’s bookstore, the current inventory is 40% historical fiction. Of the historical fiction books, 40% are new releases, while 70% of the other books are new releases. What fraction of all new releases are the historical fiction new releases? Choose the correct choice from the following
A) 4/25  B) 8/29  C) 2/5  D) 8/15  E) 2/3
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 = 70% of 60 = 42   total new books = 58   fraction = 16/58 = 8/29   Ans: 8/29
<result>B</result>
At Joel’s bookstore, the current inventory is 40% historical fiction. Of the historical fiction books, 40% are new releases, while 70% of the other books are new releases. What fraction of all new releases are the historical fiction new releases?