conversations.from: human
conversations.value: This math problem has got me stumped: Normally Ann can frost a cake in 5 minutes. However, today she has a sprained wrist and it takes her 8 minutes to frost a cake. How much longer would it take her to frost 10 cakes with her sprained wrist?
  Can you show me the way?
conversations.from: assistant
conversations.value: Normally, it would take her 5*10=50 minutes
  With her sprained wrist it will take her 8*10=80 minutes
  80-50=30 more minutes