Puzzle – Label The Fruit Boxes
There are three boxes, one contains only apples, one contains only oranges, and one contains both apples and oranges. The boxes have been incorrectly labeled such that no label identifies the actual contents of the box it labels. Opening just one box, and without looking in the box, you take out one piece of fruit. By looking at the fruit, how can you immediately label all of the boxes correctly?
Fruits Puzzle
Solution:
- First, take a fruit from the box labeled “apples and oranges.” Let’s say you pick an apple.
- Now, since this box cannot contain only apples (as it is mislabeled), and you have just removed an apple, it must contain oranges as well. Therefore, you can relabel this box as “oranges.”
- The box labeled “oranges” cannot contain only oranges (as it is mislabeled) and it can’t contain both oranges and apples (since you have just removed an apple from the box labeled “oranges and apples”). Therefore, this box must contain only apples. You can relabel this box as “apples.”
- Finally, the box labeled “apples” cannot contain only apples (as it is mislabeled) and it can’t contain both oranges and apples (since you have just removed an apple from the box labeled “oranges and apples”). Therefore, this box must contain both oranges and apples. You can relabel this box as “oranges and apples.”
- By just removing one fruit from a box, you can correctly relabel all three boxes.
There are three boxes, one contains only apples, one contains only oranges, and one contains both apples and oranges. The boxes have been incorrectly labeled such that no label identifies the actual contents of the box it labels. Opening just one box, and without looking in the box, you take out one piece of fruit. By looking at the fruit, how can you immediately label all of the boxes correctly?
Fruits Puzzle
Solution:
- First, take a fruit from the box labeled “apples and oranges.” Let’s say you pick an apple.
- Now, since this box cannot contain only apples (as it is mislabeled), and you have just removed an apple, it must contain oranges as well. Therefore, you can relabel this box as “oranges.”
- The box labeled “oranges” cannot contain only oranges (as it is mislabeled) and it can’t contain both oranges and apples (since you have just removed an apple from the box labeled “oranges and apples”). Therefore, this box must contain only apples. You can relabel this box as “apples.”
- Finally, the box labeled “apples” cannot contain only apples (as it is mislabeled) and it can’t contain both oranges and apples (since you have just removed an apple from the box labeled “oranges and apples”). Therefore, this box must contain both oranges and apples. You can relabel this box as “oranges and apples.”
- By just removing one fruit from a box, you can correctly relabel all three boxes.
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