Each pack cost 20*10=<<20*10=200>>200 cents

So each pack cost 200/100=$<<200/100=2>>2

That means he pays 2*3=$<<2*3=6>>6

# Answer

6
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Josh buys 3 packs of string cheese.  Each piece of string cheese cost 10 cents.  Each pack has 20 string cheeses in them.  How many dollars did he pay?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
6
Josh buys 3 packs of string cheese.  Each piece of string cheese cost 10 cents.  Each pack has 20 string cheeses in them.  How many dollars did he pay?
train