Permutations and Combinations
 

Permutations and Combinations problem 31


The English alphabet has one letter more than the Slovenian. We form 5 letter words from both alphabets. What is the difference between the numbers of possible formation of:


  • words of the English and Slovenian alphabets,

  • words containing 3 vowels and 2 consonants?

  • words containing 3 different vowels and 2 different vowels


 

material editor: Hope Ezeocha