conversations.from: human
conversations.value: I would love to understand how to solve this problem: Susan has 3 fish tanks to fill. 1 fish tank contains 7 goldfish and 8 beta fish. The second fish tank contains twice as many fish as the first tank and the third fish tank has a third of the number of fish in the second fish tank. How many fish are in the third fish tank?
  Can you explain?
conversations.from: assistant
conversations.value: In the first fish tank, there are 7 goldfish + 8 beta fish = 15 fish.
  The second fish tank therefore has 15 fish in the first tank * 2 = 30 fish.
  So the third tank has 30 fish in the second fish tank / 3 = 10 fish.