conversations.from: human
conversations.value: John decides to take up an odd hobby of speed talking.  His normally speaking speed is 150 WPM.  After training his speed is 2.5 times faster than his starting speed.  How long would it take him to speak 10 pages if each page has 450 words per page?
conversations.from: assistant
conversations.value: He can speak 150*2.5=375 words per minute
  He wants to say 450*10=4500 words
  So he can speak them in 4500/375=12 minutes