GMAT Problem Solving

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Source: GWD

Level: 3

A company has assigned a distinct 3-digit code number to each of its 330 employees. Each code number was formed from the digits 2, 3, 4, 5, 6, 7, 8, 9 and no digit appears more than once in any one code number. How many unassigned code numbers are there?

  • A 6
  • B 58
  • C 174
  • D 182
  • E 399

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