I buy a box of 28 doughnuts with the intention of eating two doughnuts each lunch time. If I stick to two doughnuts per day I end up eating the last two doughnuts on say a Thursday. (I then need to start the next box of 28 doughnuts the day after that on the Friday at lunch time.) I have a question about the first box of 28 doughnuts... QUESTION: If on some of the lunch times I eat 3 doughnuts instead of 2 (so I eat an extra doughnut), how many extra doughnuts would I have eaten in order to have none left to eat on the Wednesday? Here are two different answers: ANSWER A: If I don't have the two doughnuts I was going to eat on the Thursday and if I don't have the two I was going to eat on the Wednesday, I must have eaten FOUR extra doughnuts. ANSWER B: I would have to start the second box of doughnuts on the Wednesday instead of starting it on the Friday. Wednesday lunch time is 3 days earlier than Friday lunch time because we can count Wednesday 1, Thursday 2, Friday 3. Therefore I must have eaten 3 day's worth extra or in other words SIX extra doughnuts. Which answer is correct?