Mathematics, 22.01.2021 01:00 edgarsandoval60
How many 4-digit numbers can be created such that the only digits that can be used are 3, 6 and 9, a specific digit can occur at most three times in the number, and the number must be divisible by 9?
Answers: 2
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How many 4-digit numbers can be created such that the only digits that can be used are 3, 6 and 9, a...
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