conversations.from: human
conversations.value: Uncle Bradley has a $1000 bill that he wants to change into smaller bills so he could give them to his nieces and nephews. He wants to change 3/10 of the money into $50 bills while the rest into $100 bills. How many pieces of bills will Uncle Bradley have in all?
  Solve it.
conversations.from: assistant
conversations.value: There will be $1000 x 3/10 = $300 worth of money that will be changed into $50 bills.
  Uncle Bradley will have $300/$50 = 6 pieces of $50 bills.
  He will change $1000 - $300 = $700 worth of money into $100 bills.
  So there will be $700/$100 = 7 pieces of $100 bills.
  Thus, there will be a total of 6 + 7 = 13 pieces of $50 and $100 bills in all.