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How many odd five-digit counting numbers can be formed by choosing digits from the set {1, 2, 3, 4, 5, 6, 7, 8} if digits can be repeated?

 Jul 1, 2022
 #1
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We have 4 ways to choose the last digit  and  (8)^4  ways for the other digits

 

8^4 * 4  = 

 

16384 counting numbers

 

 

cool cool cool

 Jul 1, 2022

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