conversations.from: human
conversations.value: In the fall, a tree drops a tenth of its initial quantity of leaves each day over the course of four days, then abruptly drops the rest on the fifth day. If it had 340 leaves before they started to fall, how many leaves does it drop on the fifth day?
  Can you solve this problem?
conversations.from: assistant
conversations.value: The tree drops 340 / 10 = 34 leaves for each of the four days.
  Thus, it drops 34 * 4 = 136 leaves over the first four days.
  Therefore, it drops 340 - 136 = 204 leaves on the fifth day.