prompt: George was selling some of his old toys on the internet. He managed to sell 3 little cars and a set of Legos. In total, he earned $45. How much did the Legos set cost, if one little car was sold for $5?
messages.content: George was selling some of his old toys on the internet. He managed to sell 3 little cars and a set of Legos. In total, he earned $45. How much did the Legos set cost, if one little car was sold for $5?
messages.role: user
messages.content: George sold 3 cars, so he earned 3 cars * $5/car = $<<3*5=15>>15 from them.
  The lego set cost was then $45 - $15 = $<<45-15=30>>30.
  #### 30
messages.role: assistant