A combination lock requires a user to select three numbers to unlock it, where all three numbers are between 1 to 30, inclusive,
and numbers can be used more than once. What is the probability someone can guess the correct combination given 100 attempts?
1 answer:
Answer:

Step-by-step explanation:
As the numbers are only between 1 and 30
Total number of possible combinations = 30×30×30 = 27000
If there are 100 attempts then

∴ Probability someone can guess the correct combination given 100 attempts is 
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