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30 December, 18:11

A combination lock has 30 numbers on it. How many different 3-digit lock

combinations are possible if no digit can be repeated?

24,360

4060

8120

870

+1
Answers (1)
  1. 30 December, 19:05
    0
    I think it is A because a 40 number lock has 64,000 combinations and we are dealing with 30 numbers so 24,360 is the next one down. Im sorry if this is wrong
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