conversations.from: human
conversations.value: Mike gets paid 100 dollars a week.  He decides to spend half of that at an arcade.  He spends 10 dollars at the arcade on food and uses the rest on arcade tokens. He can play for 1 hour for $8. How many minutes can he play?
conversations.from: assistant
conversations.value: He spent 100*.5=$50 at the arcade.
  He uses 50-10=$40 on tokens
  He can play 40/8=5 hours
  There are 60 minutes in an hour so he can play 5*60=300 minutes