SOLUTION: You are to set up a code of 2- digits words using the digits 1, 2, 3, 4 without using any digit more than once.a) What is the maximum number of words in such a language?

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Question 430614: You are to set up a code of 2- digits words using the digits 1, 2, 3, 4 without using any digit more than once.a) What is the maximum number of words in such a language?
Answer by stanbon(75887) About Me  (Show Source):
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You are to set up a code of 2- digits words using the digits 1, 2, 3, 4 without using any digit more than once.a) What is the maximum number of words in such a language?
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ways to choose the 1st digit: 4
ways to choose the 2nd digit: 3
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Total number of 2-digit words: 4*3= 12
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Cheers,
Stan H.