conversations.from: human
conversations.value: Solve the math problem: Marcia wants to buy some fruit. Apples cost $2, bananas cost $1, and oranges cost $3. If Marcia buys 12 apples, 4 bananas and 4 oranges, what is the average cost of each piece of fruit in dollars?
conversations.from: assistant
conversations.value: Find the price of each group of fruit
  12 apples * $2 per apple = $24
  4 bananas * $1 per banana = $4
  3 oranges * $4 per orange = $12
  $24 + $4 + $12 = $40 in total that was spent
  12 + 4 + 4 = 20 total fruits bought
  $40 / 20 fruits = $2 per fruit