SOLUTION: Tommy is making a 6 letter password using only the letters A,B,C,D,E and F.How many different codes can Tommy make, if the letter can only be used once in each code?
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Question 1143034: Tommy is making a 6 letter password using only the letters A,B,C,D,E and F.How many different codes can Tommy make, if the letter can only be used once in each code?
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
6 choices for the first letter; then 5 choices for the second, then 4 for the third, and so on. By the fundamental counting principle, multiply the numbers of choices for each letter.
ANSWER: 6*5*4*3*2*1 = 6! = 720
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