conversations.from: human
conversations.value: Solve the following math problem: In Johnstown, the population is 80 and every single person drives by themselves to work. Each car on a road pollutes 10 pounds of carbon a year. A single bus pollutes 100 pounds of carbon a year. A bus can hold 40 people. The town decides to start running a bus and 25% of the people who used to drive now take the bus. How many fewer pounds of carbon are now emitted per year?
conversations.from: assistant
conversations.value: The town used to emit 800 pounds of carbon a year because 80 x 10 = 800
  20 now take the bus because 80 x .25 = 20
  60 people still drive because 80 - 20 = 60
  Those 60 people create 600 pounds of carbon because 60 x 10 = 600
  The town now emits 700 pounds of carbon because 100 + 600 = 700
  The town emits 100 fewer pounds of carbon now because 800 - 700 = 100