conversations.from: human
conversations.value: John plays a game for 4 hours a day every day for 2 weeks.  After all that time, he is only 40% done.  He increased his playtime to 7 hours a day.  How long until he finishes the game?
  Solve this problem.
conversations.from: assistant
conversations.value: There are 7*2=14 days in two weeks
  So he played 14*4=56 hours
  That means the total length of the game is 56/.4=140 hours
  So he has 140-56=84 hours to beat the game
  So it will take him 84/7=12 days to beat the game