conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: In a classroom, there are blue chairs, green chairs, and white chairs. There are 10 blue chairs. The green chairs are 3 times as many as the blue chairs, and there are 13 fewer white chairs than the green and blue chairs combined. How many chairs are there in a classroom?
conversations.from: assistant
conversations.value: There are 10 x 3 = 30 green chairs.
  The total number of blue and green chairs is 10 + 30 = 40.
  So, there are 40 - 13 = 27 white chairs.
  Therefore, there are 40 +27 = 67 chairs in a classroom.