SOLUTION: Karen has forgotten the four-digit code to activate the copying machine. She remembers the digits are 2, 4, 5, and 6. How many possible combinations are there for Karen to try?

SOLUTION: Karen has forgotten the four-digit code to activate the copying machine. She remembers the digits are 2, 4, 5, and 6. How many possible combinations are there for Karen to try?

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Question 66198: Karen has forgotten the four-digit code to activate the copying machine. She remembers the digits are 2, 4, 5, and 6. How many possible combinations are there for Karen to try?
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
She has four digits that can be in any order, so order does not matter .... meaning you use Permutations.
P(4,4) = 4!/1 = 24 different combinations
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