SOLUTION: 5. How many numbers may be formed by using 4 out of the 5 digits 1,2,3,4,5
(a) if the digits must not be repeated in any number,
(b) if they may be repeated? If the digits must
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Question 1191178: 5. How many numbers may be formed by using 4 out of the 5 digits 1,2,3,4,5
(a) if the digits must not be repeated in any number,
(b) if they may be repeated? If the digits must not be repeated, how many of the 4-digit numbers
Show full solution, thank you!
Answer by Solver92311(821) (Show Source): You can put this solution on YOUR website!
(a) 
(b) 
You can do your own arithmetic.
John
My calculator said it, I believe it, that settles it
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