conversations.from: human
conversations.value: Please show me the solution for: A restaurant has 40 tables with 4 legs and 50 tables with 3 legs. Calculate the total number of legs the restaurant's tables have.
conversations.from: assistant
conversations.value: The total number of legs which the tables with four legs have is 40*4 = 160 legs
  The three-legged tables have a total of 50*3 = 150 legs.
  The total number of legs that the restaurant's table have is 150+160 = 310