Question 645996
alvin community college's identification number consist of a letter followed by four digits.how many different identification numbers are possible if repetition is not permitted
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Pattern: LDDDD
L in 26 ways
D in 10 ways
D in  9 ways
D in 8 ways
D in 7 ways
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Total ID numbers: 26*10*9*8*7 = 131,040
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Cheers,
Stan H.