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An identity thief watches someone enter a four-digit PIN and manages to see that the first digit is 3. They also know that the second digit is either 4 or 7. If the thief tries guessing the PIN, how many
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An identity thief watches someone enter a four-digit PIN and manages to see that the first digit is 3. They also know that the second digit is either 4 or 7. If the thief tries guessing the PIN, how many possibilities would there be?

A. 100 B. 162 C. 180 D. 200

User Sers
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2 Answers

4 votes
the answer should be B 
User Psarka
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7 votes

It;s D, i just took the test

User Mark Leong
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