2 years ago

A. How many ways can you make a code of 3 digits if any number can be repeated?

1 answer:

4 0

1000 ways

First digit of codes: 10 choices (0-9)

Second digit of codes: 10 choices (0-9)

Third digit of codes: 10 choices (0-9)

10*10*10 = 1000

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