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Sat 6 Sep, 2008 07:13 am
In a contest four fruits have been placed in four closed boxes one fruit for a box. People may guess which fruit is in which box, 123 people participated in the contest. When the boxes are opened / it turns out that 43 people have guessed none of the fruits correctoly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctoly. How many people have gussed three fruits correctly?
If there are 4 fruits and you guess 3 of them correctly then you will have guessed the remaining fruit correctly as well.
So 0.
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