conversations.from: human
conversations.value: Ms. Warren ran at 6 mph for 20 minutes. After the run, she walked at 2 mph for 30 minutes. How many miles did she run and walk in total?
  What is the solution?
conversations.from: assistant
conversations.value: 20 minutes is 20/60=1/3 of an hour.
  Ms. Warren ran 6/3=2 miles.
  30 minutes is 30/60=1/2 of an hour.
  Ms. Warren walked 2/2=1 mile.
  Ms Warren ran and walked 2+1=3 miles in total.