If there are 2/5 times as many books as the number of tables in the class on top of each table, there are 2/5*500 = <<2/5*500=200>>200 books.

Since the class has 500 tables with 200 books on top of each, there are 500*200 = <<500*200=100000>>100000 books.

# Answer

100000
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A class has 500 tables and 2/5 times as many books as the number of tables in the class are on top of each table. What's the total number of books in the class?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
100000
A class has 500 tables and 2/5 times as many books as the number of tables in the class are on top of each table. What's the total number of books in the class?
train