prompt: James buys steaks for buy one get one free.  The price is $15 per pound and he buys 20 pounds.  How much did he pay for the steaks?
messages.content: James buys steaks for buy one get one free.  The price is $15 per pound and he buys 20 pounds.  How much did he pay for the steaks?
messages.role: user
messages.content: He pays for 20/2=<<20/2=10>>10 pounds of steaks
  That cost 10*15=$<<10*15=150>>150
  #### 150
messages.role: assistant