SOLUTION: For a 5 digit number how many combinations are there if one number must repeat? Also what about if two numbers must repeat?

Algebra.Com
Question 866909: For a 5 digit number how many combinations are there if one number must repeat?
Also what about if two numbers must repeat?

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
If one number must repeat it's like a 4 digit number.

If two numbers must repeat, it's like a 3 digit number.


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