conversations.from: human
conversations.value: This math problem has got me stumped: Ashley had already blown up 12 balloons for the party when Andy took over and started blowing them up at a rate of 2 every five minutes. When Andy stopped, there were 50 balloons. For how many minutes did Andy blow up balloons?
  Can you show me the way?
conversations.from: assistant
conversations.value: Andy blew up 50 balloons – the 12 balloons Ashley blew up = 38 balloons.
  We know how long it took Andy to blow up 2 balloons, so 38 balloons / 2 = 19 time increments.
  We know the time increment is 5 minutes, so 19 x 5 minutes = 95 minutes.