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Old 11-11-2008, 02:32 PM   #26
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Quote:
Originally Posted by 01Cobra View Post
Got a few problems I can't figure out

How many three-letter code words can be constructed from the first eight letters of the Greek alphabet if no repetitions are allowed?

In recent years, the state of California has issued license plates using a combination of two letters of the alphabet followed by two digits, followed by another three letters of the alphabet. How many different license plates can be issued using this configuration?

A warranty identification number for a certain product consists of a letter of the alphabet followed by an eight-digit number. How many possible identification numbers are there if the first digit of the eight-digit number must be nonzero?
#1 8 letters no repeats so
8*7*6=336 ways

#2
26*26*10*10*26*26*26=1,188,137,600
However most states don't let you use the letter "O" so it should be
25*25*10*10*25*25*25=976,762,500

#3
26*9*10*10*10*10*10*10*10=23,400,000,000
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