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01.07.2019 •
Mathematics
Acombination lock requires a user to select three numbers to unlock it, where all three numbers are between 1 to 30, inclusive. what is the probability someone can guess the correct combination given 100 attempts?
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Ответ:
you can repeat numbers
3 numbers between 1 to 30 including 1 and 30
that means (30-1)+1=30 numbers
3 slots that can be repeated
so there are 30^3=27000 combinations
in 100 attempts, hmm
that is a 100/27000=1/270 chance or about 0.37% chance
Ответ:
Hope this helps!!! :)