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How many 3 digit numbers can be made using the digits in the list (1,2,3,3,3,9)?

 Aug 10, 2020
 #1
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As follows:

 

{1, 2, 3} | {1, 2, 9} | {1, 3, 2} | {1, 3, 3} | {1, 3, 9} | {1, 9, 2} | {1, 9, 3} | {2, 1, 3} | {2, 1, 9} | {2, 3, 1} | {2, 3, 3} | {2, 3, 9} | {2, 9, 1} | {2, 9, 3} | {3, 1, 2} | {3, 1, 3} | {3, 1, 9} | {3, 2, 1} | {3, 2, 3} | {3, 2, 9} | {3, 3, 1} | {3, 3, 2} | {3, 3, 3} | {3, 3, 9} | {3, 9, 1} | {3, 9, 2} | {3, 9, 3} | {9, 1, 2} | {9, 1, 3} | {9, 2, 1} | {9, 2, 3} | {9, 3, 1} | {9, 3, 2} | {9, 3, 3} (total: 34)

 Aug 10, 2020

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