conversations.from: human
conversations.value: I need a clearer understanding of how to solve: Orlan gave one-fourth of his 20-meter rope to Allan. He then gave two-thirds of the remaining to Jack. How many meters of rope is left to Orlan?
conversations.from: assistant
conversations.value: Orlan gave Allan 20 x 1/4 = 5 meters of rope.
  So he had 20 - 5 = 15 meters left.
  Then he gave 15 x 2/3 = 10 meters of the rope to Jack.
  Therefore, Orlan is left with 15 - 10 = 5 meters of rope.