Multiple Choice
How many permutations does a combination lock have if each combination has 4 numbers, no two numbers of the combination are the same, and the lock dial has 30 notches?
A) 1,973,160
B) 657,720
C) 1,315,440
D) 328,860
E) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
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