1 year ago

A safe's lock has a three number combination. The

Mathematics

1 answer:

Nikolay [14]1 year ago

5 0

Answer:

720 combinations

Step-by-step explanation:

Each number has initially 10 options.

If one option used for the first number then the second number has one less, 9 options. Similarly, the third number has one less number of options than the second number, 8 options.

Total number of combinations is

10*9*8 = 720

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