conversations.from: human
conversations.value: I'm stuck on this math problem: Don can paint 3 tiles a minute, Ken can paint 2 more tiles a minute than Don and Laura can paint twice as many tiles as Ken. Kim can paint 3 fewer tiles than Laura can in a minute. How many tiles can Don, Ken, Laura and Kim paint in 15 minutes?
  Can you help?
conversations.from: assistant
conversations.value: Ken paints 3 tiles/minute + 2 tiles/minute = 5 tiles/minute.
  Laura can paint 5 tiles/minute x 2 = 10 tiles/minute.
  Kim can paint 10 tiles/minute - 3 tiles/minute = 7 tiles/minute.
  All 4 can paint 3 tiles/minute + 5 tiles/minute + 10 tiles/minute + 7 tiles/minute = 25 tiles/minute.
  In 15 minutes, they can paint 15 minutes x 25 tiles/minute = 375 tiles.