prompt: John buys 3 barbells and gives $850 and gets $40 in change.  How much did each barbell cost?
messages.content: John buys 3 barbells and gives $850 and gets $40 in change.  How much did each barbell cost?
messages.role: user
messages.content: The total price of the barbells was 850-40=$<<850-40=810>>810
  So each one cost 810/3=$<<810/3=270>>270
  #### 270
messages.role: assistant