prompt.content: Mike's teacher, leaves as homework the reading of a 200-page book. The assignment is to be completed within 30 days. Mike plans to read 10 pages a day. How many days before the deadline will Mike finish his reading? Let's think step by step and output the final answer after "####".
prompt.role: user
extra_info.answer: Reading 10 pages per day, Mike finishes reading his book in 200 ÷ 10 = <<200/10=20>>20 days.
  Mike finishes reading his book 30 - 20 = <<30-20=10>>10 days before the deadline.
  #### 10
extra_info.question: Mike's teacher, leaves as homework the reading of a 200-page book. The assignment is to be completed within 30 days. Mike plans to read 10 pages a day. How many days before the deadline will Mike finish his reading?
extra_info.split: test