conversations.from: human
conversations.value: There are 248 pages in a book. Joanna can read 16 pages per hour. On Monday, she reads for 3 hours. On Tuesday, she reads for 6.5 hours. How many more hours does she need to read to finish the book?
conversations.from: assistant
conversations.value: On Monday, Joanna reads 3*16=48 pages.
  On Tuesday, Joanna reads 6.5 * 16 =104 pages.
  So far, she has read 48 +104 =152 pages.
  Thus, she has 248-152 = 96 pages left.
  She will need to read for 96/16 = 6 hours to finish the book.