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

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The Answer of 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

How Many Permutations Does a Combination Lock Have If Each