conversations.from: human
conversations.value: Johan has a ten-bedroom house with 8 walls in each room. He paints 3/5 of the rooms in the house green and paints the rest of the rooms with purple color. How many walls in the house did he paint purple?
  Give me a detailed solution.
conversations.from: assistant
conversations.value: Since Cristian's house has ten rooms, he painted 3/5*10 = 6 rooms with green color.
  The number of rooms he painted with purple is 10-6 = 4 rooms.
  Since each room in the house has eight walls, the number of walls painted purple is 8*4= 32.