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hi i have this quetion,

 

how many different 3-digit identification tags can be made if the digit can be used more then once? if the first digitmust be a 5 and repetition are not permitted

Guest May 9, 2017
 #1
avatar+92777 
+1

What do you mean by

Repetition is not allowed but digits can be used more than once? 

Melody  May 9, 2017
 #2
avatar+92777 
0

obviously you no longer want an answer :/

Melody  May 9, 2017

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