conversations.from: human
conversations.value: Find a solution for this math problem: Steve writes a letter every 3rd day to his friend.  He spends 20 minutes writing the letters.  It takes 10 minutes to write 1 page.  He also writes a long letter at the end of the month which he puts more thought into.  It takes twice as long per page but he spends 80 minutes writing.  How many pages does he write a month?
conversations.from: assistant
conversations.value: He writes 30/3=10 normal letters
  Each letter is 20/10=2 pages
  So that is 2*10=20 pages
  His long letter takes 2*10=20 minutes per page
  So it is 80/20=4 pages
  So he writes 20+4=24 pages