prompt: A train travels 270 miles in 3 hours. At the same rate, how many additional hours would it take to travel an additional 180 miles?
messages.content: A train travels 270 miles in 3 hours. At the same rate, how many additional hours would it take to travel an additional 180 miles?
messages.role: user
messages.content: The rate is 270/3=<<270/3=90>>90 mph.
  Then it takes an additional 180/90=<<180/90=2>>2 hours.
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messages.role: assistant