conversations.from: human
conversations.value: I'm stuck on this math problem: In a field of 500 clovers, 20% have four leaves and one quarter of these are purple clovers. Assuming these proportions are exactly correct, how many clovers in the field are both purple and four-leaved?
  Can you help?
conversations.from: assistant
conversations.value: There are 500/5= 100 four leaf clovers
  There are 100/4= 25 purple four leaf clovers