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

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Question 1201691: how many 3-digit numbers can be made with the digits 1,2,3,4,5,6,7 if repetition is allowed (A) and repetition is not allowed (B) ?
Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
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(A)  7%5E3 = 7*7*7 = 343.      ANSWER



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

Solved.