conversations.from: human
conversations.value: I would love to understand how to solve this problem: A farm has 100 chickens.  20 percent are Black Copper Marans, and 80 percent of the Black Copper Marans are hens.  How many BCM hens are there?
  Can you explain?
conversations.from: assistant
conversations.value: Black Copper Marans: 100(.20)=20
  BCM Hens:20(.80)=16