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fiesta
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fiesta
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

8*7*6 are possible combinations out of which 330 are used => unsused is 6 IMO A
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There are 8 numbers to choose from (2, 3, 4, 5, 6, 7, 8, 9)

The codes contain 3 of these 8 digits, without repetition

So, the total number of possible codes are 8*7*6 = 336

336 - 330 = 6

A) 6



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