conversations.from: human
conversations.value: Find a solution for this math problem: There are 120 cards in a box. If 2/5 of the cards are red, exactly 5/9 of the remainder are black, and the rest are green, calculate the number of green cards in the box?
conversations.from: assistant
conversations.value: The number of red cards in the box, 2/5 of the total number, is 2/5*120 = 48.
  The number of cards that are not red is 120-48 = 72.
  If 5/9 of the remaining cards are black, then there are 5/9*72 = 40 black cards in the box.
  If the remaining cards are green, then there are 72-40 = 32 green cards in the box.