Asked by Anonymous
If there is a code that is 8 digits long. The numbers 0-9 may be used for any digit.
How many possible codes are there?
How many possible codes are there?
Answers
Answered by
MsPi_3.14159265
Consider the code as 8 spaces for the combination.
___ ___ ___ ___ ___ ___ ___ ___
There are 0-9 numbers (that is 10 options) for each space for the code. And we know that each number can be repeated for any place in the code so,
10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 possible codes.
___ ___ ___ ___ ___ ___ ___ ___
There are 0-9 numbers (that is 10 options) for each space for the code. And we know that each number can be repeated for any place in the code so,
10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 possible codes.
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