conversations.from: human
conversations.value: I would love to understand how to solve this problem: Luis is driving 80 miles in 2 hours. How far will he go in 15 minutes?
  Can you explain?
conversations.from: assistant
conversations.value: Luis drives 80/2 = 40 miles in 1 hour.
  Since there are 60 minutes in 1 hour, then he drives 40/60 = 2/3 of a mile in 1 minute.
  So in 15 minutes, he will go 2/3 x 15 = 10 miles far.