Week 1:600/2=300

600-300=<<600-300=300>>300 pages remain

Week 2:300(.30)=90 pages

300-90=<<300-90=210>>210 pages remain

Week 3:210 pages

# Answer

210
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Coral is reading a book that is 600 pages long.  She reads half of it in the first week, and 30 percent of the remaining pages the second week. How many pages must she read the third week in order to finish the book?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
210
Coral is reading a book that is 600 pages long.  She reads half of it in the first week, and 30 percent of the remaining pages the second week. How many pages must she read the third week in order to finish the book?
train