prompt: Melinda is taking a 1200-mile trip with her family to visit their cousins. How much time will they save if they drive 60 miles an hour instead of 50 miles an hour?
messages.content: Melinda is taking a 1200-mile trip with her family to visit their cousins. How much time will they save if they drive 60 miles an hour instead of 50 miles an hour?
messages.role: user
messages.content: Going 60 mph, the trip would take 1200-mile trip / 60 miles an hour = <<1200/60=20>>20 hours.
  Going 50 mph, the trip would take 1200-mile trip / 50 miles an hour = <<1200/50=24>>24 hours.
  Melinda’s family would save 24 – 20 = <<24-20=4>>4 hours.
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messages.role: assistant