Stan needs to write 2,000 words because 5 x 400 = <<5*400=2000>>2,000

This will take him 40 minutes because 2,000 / 50 = <<2000/50=40>>40

He drinks 1/4 an ounce per minute because 15 / 60 = 1/4

He will drink 10 ounces of water while writing the paper because 40 x (1/4) = <<40*(1/4)=10>>10

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Stan can type 50 words per minute. He needs to write a 5-page paper. Each page will contain 400 words. Each hour that he types he needs to drink 15 ounces of water. How much water does he need to drink while writing his paper?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
10
Stan can type 50 words per minute. He needs to write a 5-page paper. Each page will contain 400 words. Each hour that he types he needs to drink 15 ounces of water. How much water does he need to drink while writing his paper?
train