SOLUTION: How many three-digit numbers can be formed by using the numerals in the set {3,2,7,9} if repetition is not allowed?

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Question 649970: How many three-digit numbers can be formed by using the numerals in the set {3,2,7,9} if repetition is not allowed?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

using the numerals in the set {3,2,7,9}

How many three-digit numbers can be formed if repetition is not allowed? 4%2A3%2A2

Four choices for the first digit, 3 choices for the second, etc.