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A safe has a 4-digit lock code that does not include zero as a digit is repeated. What is the probability of a lock without all even digits?
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A safe has a 4-digit lock code that does not include zero as a digit is repeated. What is the probability of a lock without all even digits?

User Nelio Alves
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2 Answers

2 votes
One answer could be 1234
User Thekthuser
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3 votes

are 24 ways, are 3000 ways, 3000/3024

User MxNx
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