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How many different combinations of 3 positive odd numbers have a sum of 21?
Wiki User
∙ 14y ago
There are 12 different combinations of 3 positive odd numbers that add up to 21.
Namely: (There are many permutations of these combinations.)
1,1,9
1,3,17
1,5,15
1,7,13
1,9,11
3,3,15
3,5,13
3,7,11
3,9,9
5,5,11
5,7,9
7,7,7
Wiki User
∙ 14y ago
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