prompt: James has to refuel his plane.  It used to cost $200 to refill the tank.  He got an extra tank to double fuel capacity.  Fuel prices also went up by 20%.  How much does he pay now for fuel?
messages.content: James has to refuel his plane.  It used to cost $200 to refill the tank.  He got an extra tank to double fuel capacity.  Fuel prices also went up by 20%.  How much does he pay now for fuel?
messages.role: user
messages.content: The cost to fill a tank went up 200*.2=$<<200*.2=40>>40
  So it cost 200+40=$<<200+40=240>>240 to fill the tank
  That means he now pays 240*2=$<<240*2=480>>480
  #### 480
messages.role: assistant