prompt: James makes potatoes for a group.  Each person eats 1.5 pounds of potatoes.  He makes potatoes for 40 people.  A 20-pound bag of potatoes costs $5.  How much does it cost?
messages.content: James makes potatoes for a group.  Each person eats 1.5 pounds of potatoes.  He makes potatoes for 40 people.  A 20-pound bag of potatoes costs $5.  How much does it cost?
messages.role: user
messages.content: He needs 1.5*40=<<1.5*40=60>>60 pounds of potatoes
  So he needs to buy 60/20=<<60/20=3>>3 bags of potatoes
  So it cost 3*5=$<<3*5=15>>15
  #### 15
messages.role: assistant