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

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(52788) (Show Source): You can put this solution on YOUR website!
.


(A)   = 7*7*7 = 343.      ANSWER



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

Solved.

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