<human>:  James prints out 2 books. They are each 600 pages long. He prints out double-sided and 4 pages per side. How many sheets of paper does he use?
<bot>: How many pages are in the books? ** He printed 600*2=<<600*2=1200>>1200 pages
How many pages are on each sheet of paper? ** Each sheet of paper was 4*2=<<4*2=8>>8 pages
How many sheets of paper did James use? ** So he used 1200/8=<<1200/8=150>>150 sheets of paper
#### 150