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Consider the 3-digit numbers which are written by using the digits 1, 2, 3, 4, 5. Find the number of those numbers which have two equal digits and one different digit.
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Consider the 3-digit numbers which are written by using the digits 1, 2, 3, 4, 5. Find the number of those numbers which have two equal digits and one different digit.

User Slinkhi
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7 votes
2 and 5 are the answer to your question
User Tim Lehner
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