Posted by **Susie** on Tuesday, February 1, 2011 at 11:15pm.

How many three-symbol codes (letter-letter-number) can be made from the letters, S,P,Y, and one digit from the set {0,1,2,...,9] without repetition?

- Mat 157 -
**Anonymous**, Friday, February 20, 2015 at 5:23am
120

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