conversations.from: human
conversations.value: Jaydee can type 38 words in a minute. How many hours will he take to finish typing a research paper with 4560 words?
  Give me a clear explanation.
conversations.from: assistant
conversations.value: Jaydee can type his research paper in 4560/38 = 120 minutes.
  Since there are 60 minutes in an hour, he can finish it in 120/60 = 2 hours.