SOLUTION: Determine the number of ways to form 4-digit numbers by using the digits 1,2,3,4,5,6, and 7 if repetitions of digits are allowed.

Algebra ->  Permutations -> SOLUTION: Determine the number of ways to form 4-digit numbers by using the digits 1,2,3,4,5,6, and 7 if repetitions of digits are allowed.      Log On


   

Question 695170: Determine the number of ways to form 4-digit numbers by using the digits 1,2,3,4,5,6, and 7 if repetitions of digits are allowed.
Answer by stanbon(75887) About Me  (Show Source):
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Determine the number of ways to form 4-digit numbers by using the digits 1,2,3,4,5,6, and 7 if repetitions of digits are allowed.
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Ans: 7*7*7*7 = 7^4 = 2401 numbers
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Cheers,
Stan H.