conversations.from: human
conversations.value: Arven bought five puppies for a total cost of $800. Three puppies are on sale for $150 each. How much does each of those two other puppies cost if they cost the same?
  How to solve this?
conversations.from: assistant
conversations.value: Three puppies on sale cost $150 x 3 = $450.
  The other two puppies cost $800 - $450 = $350.
  So, each of those two other puppies cost $350/2 = $175.