<human>:  The book is printed on paper that, when stacked, is 100 pages to the inch. Each paper is printed on both sides, with one page of the book printed on each side. How many pages are in the book, if it is 1.5 inches thick?
<bot>: How many pieces of paper are in the book? ** There are 1.5*100=<<1.5*100=150>>150 pieces of paper.
How many pages are in the book? ** Then there are 150*2=<<150*2=300>>300 pages.
#### 300