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August 30, 2015

Homework Help: Math

Posted by B.B. on Monday, August 3, 2009 at 1:04pm.

Did I do this problem right?
How many three symbol codes (letter-number-number) can be made from the letters S,P,Y and two digits from the set {0,1,2,...,9} without repetition?
Answer: 3*10*9=270.

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