Permutations and Combinations
 

Permutations and Combinations problem 36


With the letters M and A we compose words of length 5. How many words can we compose:

  • without restrictions,


  • if the letter M occurs exactly 3 times,


  • if the letter A occurs no more than 2 times,


  • if the letter M occurs at least 2 times?



 

To view the solution, you need to log in.



Discussion forum
 
 

Only registered users can participate in the discussion.


 
 

material editor: Theophilus Borgbara