On Wednesday, Carlo practiced for 50 + 5 = <<50+5=55>>55 minutes.

On Tuesday, he practiced for 55 - 10 = <<55-10=45>>45 minutes.

On Monday, he practiced for 45 x 2 = <<45*2=90>>90 minutes.

So, Carlo practiced for a total of 90 + 45 + 55 + 50 = <<90+45+55+50=240>>240 minutes from Monday to Thursday.

He needs to practice for a total of 60 x 5 = <<60*5=300>>300 minutes.

Therefore, he should practice for 300 - 240 = <<300-240=60>>60 minutes on Friday.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Carlo has a music recital next week. He practiced twice as long on Monday as on Tuesday. On Tuesday, he practiced 10 minutes less than on Wednesday. On Wednesday, he practiced 5 minutes more than on Thursday. On Thursday, he practiced for 50 minutes. If he needs to practice for a total of 5 hours that week, how long should Carlo practice on Friday?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
60
Carlo has a music recital next week. He practiced twice as long on Monday as on Tuesday. On Tuesday, he practiced 10 minutes less than on Wednesday. On Wednesday, he practiced 5 minutes more than on Thursday. On Thursday, he practiced for 50 minutes. If he needs to practice for a total of 5 hours that week, how long should Carlo practice on Friday?
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