The box contains 9 Christmas tree balls – 4 red and 5 gold. What is the smallest number of balls you can take out
| December 16, 2020 | education
The box contains 9 Christmas tree balls – 4 red and 5 gold. What is the smallest number of balls you can take out of the box without looking into it, so that there must be at least 1 golden ball among them.
The smallest number of balls is 5, since there are only 4 red balls and they will pull out all the red ones, then 1 ball will definitely be gold
So the answer is; 5 balls
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