medium · GMAT Quant
A security vault requires a 5-digit passcode selected from the digits 1, 2, 3, 4, 5, 6, 7, 8. Protocol mandates that the passcode cannot start with 1 or 2, and no two consecutive digits may be identical.
How many valid vault passcodes can be set?
- 14,406
- 19,208
- 24,576
- 32,768
- 2,160
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