prompt: John travels 150 miles in 2 hours.  The speed limit is 60 mph.  How many mph above the speed limit was he driving?
messages.content: John travels 150 miles in 2 hours.  The speed limit is 60 mph.  How many mph above the speed limit was he driving?
messages.role: user
messages.content: He was driving 150/2=<<150/2=75>>75 mph
  So he was 75-60=<<75-60=15>>15 mph above the speed limit
  #### 15
messages.role: assistant