Mathematics, 12.10.2020 20:01 hixoxo
The digits 4,5,4 and 8 are used in a 3-digit ID card. How many different cards are possible if repetitions are not permitted? 4x3x2=24 different id numbers.
Answers: 1
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The digits 4,5,4 and 8 are used in a 3-digit ID card. How many different cards are possible if repet...
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