prompt: There was a big sale on cat food at the pet store. 20 people bought cat food that day. The first 8 customers bought 3 cases each. The next four customers bought 2 cases each. The last 8 customers of the day only bought 1 case each. How many cases of cat food were sold?
messages.content: There was a big sale on cat food at the pet store. 20 people bought cat food that day. The first 8 customers bought 3 cases each. The next four customers bought 2 cases each. The last 8 customers of the day only bought 1 case each. How many cases of cat food were sold?
messages.role: user
messages.content: The first 8 customers bought 8*3=<<8*3=24>>24 cases
  The next 4 customers bought 4*2=<<4*2=8>>8 cases
  The last 8 customers bought 8*1=<<8*1=8>>8
  In total 24+8+8=<<24+8+8=40>>40 cases were sold
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messages.role: assistant