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Thu 27 Mar, 2003 11:48 am
There are three closed and opaque cardboard boxes. One is labeled "APPLES", another is labeled "ORANGES", and the last is labeled "APPLES AND ORANGES". You know that the labels are currently misarranged, such that no box is correctly labeled. You would like to correctly rearrange these labels. To accomplish this, you may draw only one fruit from one of the boxes. Which box do you choose, and how do you then proceed to rearrange the labels?
err..methinks that's just to make sure people don't say silly things like "hold a box up to the light" and such.
Sent you a PM with my solution. Didn't want to spoil the fun of any other solvers.
You'd have to take from the Apples-and-Oranges-labelled box, because if you took something from any other box it would give you absolutely no information you could use.
Therefore, if the mix box contained an apple, you put the apples label on it; the box that used to have the apples label would be the oranges, since if it was the mix, the oranges would already be labelled correctly. Same applies in reverse if you picked an orange from the 'mix' box.
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