the 3rd one
travis s - Hmm, not sure I see a "3rd one." What's your justification?
If the same amount of soda was taken from each, wouldn't they be the same?
peterg - Maybe. Can you justify that?What about someone who says, "When you take the soda from the second glass it's no longer 100% Coke - it has some Sprite in it. So therefore you're putting less Coke back in the Sprite than the amount of Sprite you put in the Coke."
Karl Fisch- I see you point. They both have the same amount, but they are both filled with the other type, making each a mix of both Coke and Sprite.