A vault in a bank has a 3-digit combination lock. Each digit in the combination could be any number from 0 to 9. How many possible combinations are there?
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Answer: possible combinations are 1000
Step-by-step explanation:
If you mean a lock where three wheels are turned, for example, and so the order of the digits is important it could be up to 1000. Here 123 is different to 231 etc.
Assuming every digit from 0 to 9 is allowed in each position, you have ten choices for each digit. 10 x 10 x 10 = 1000
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