SOLUTION: what percent of all 3 digit codes have at least one repetition. examples: 544, 333, 252

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Question 929945: what percent of all 3 digit codes have at least one repetition. examples: 544, 333, 252
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
100% - = 100% - 72% = 28%
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