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Ivanshal [37]
3 years ago
8

A suitcase has a lock on it consisting of three numbers. Each number could be any

Mathematics
1 answer:
Viktor [21]3 years ago
8 0

Answer:  810

<u>Step-by-step explanation:</u>

There are 10 numbers to choose from.  Since the 2nd digit and 3rd digit cannot repeat the number before it, they only have 9 numbers to choose from.

1st digit         and          2nd digit        and        3rd digit

10 choices      x            9 choices         x          9 choices      =  810

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