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The combination for opening a safe is a four-digit number made up of different digits. How many different combinations can you make, using only odd digits?
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4 votes
The combination for opening a safe is a four-digit number made up of different digits. How many different combinations can you make, using only odd digits?

User Suji
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2 Answers

2 votes
my bad didn't see the odds condition
User Tim Ernsberger
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4 votes


5\cdot4\cdot3\cdot2=120

User Arman H
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