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24 April, 18:51

There are 9 marbles in a hat. The balls are numbered 1-9. You need to choose 3 of the balls. How many possible combinations are there

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  1. 24 April, 21:21
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    There are 57 variations that are above and then times that by 9 because the various will never repeat the same number like when you move onto 2's you'd replace all the 2 with 1's and so on and so forth

    The answer is 513 variations
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