SOLUTION: how many 3-digit numbers can be made with the digit 1,2,3,4,5,6,7 if repetition is allowed (A) and repetition is not allowed (B)? A. repetition allowed B. repetition not allowe

Algebra ->  Permutations -> SOLUTION: how many 3-digit numbers can be made with the digit 1,2,3,4,5,6,7 if repetition is allowed (A) and repetition is not allowed (B)? A. repetition allowed B. repetition not allowe      Log On


   



Question 1201690: how many 3-digit numbers can be made with the digit 1,2,3,4,5,6,7 if repetition is allowed (A) and repetition is not allowed (B)?
A. repetition allowed
B. repetition not allowed

Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.

(A)  7%5E3 = 7*7*7 = 343.      ANSWER



(B)  7*6*5 = 210.            ANSWER

Solved.