He can type out 1 page in 450/90=<<450/90=5>>5 minutes

So it would take 5*10=<<5*10=50>>50 minutes

# Answer

50
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Tom can type 90 words a minute.  A page is 450 words.  How long would it take him to type out 10 pages?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
50
Tom can type 90 words a minute.  A page is 450 words.  How long would it take him to type out 10 pages?
train