Security
The safe's security code is set with three dials. The first dial has five different letters, the second dial has the numbers 0 to 4, and the third dial has the numbers 5 to 9. One code can be set in approximately 1 second. How should the alarm be timed so that it sounds one-fifth of the time it takes to try all possible codes?
Correct answer:
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Do you want to convert time units like minutes to seconds?
Would you like to compute the count of combinations?
Do you want to convert time units like minutes to seconds?
Would you like to compute the count of combinations?
You need to know the following knowledge to solve this word math problem:
combinatoricsUnits of physical quantitiesGrade of the word problem
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