prompt: Liza reads 20 pages in an hour, and Suzie reads 15 pages in an hour. How many more pages does Liza read than Suzie in 3 hours?
messages.content: Liza reads 20 pages in an hour, and Suzie reads 15 pages in an hour. How many more pages does Liza read than Suzie in 3 hours?
messages.role: user
messages.content: In 3 hours, Liza reads 20 x 3 = <<20*3=60>>60 pages.
  In 3 hours, Suzie reads 15 x 3 = <<15*3=45>>45 pages.
  Liza reads 60 - 45 = <<60-45=15>>15 pages more than Suzie.
  #### 15
messages.role: assistant