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How many different sequences of five letters can be made from H, I, J, K, and L if each letter may be used more than once and if the sequence may not start or end with a vowel?

 Mar 31, 2021

Best Answer 

 #1
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So in the question, it says it can't start or end with a vowel and the only vowel there is I and out of the 5 letters _ _ _ _ _ we now know that there are 4 possibilities for the 1st and last letter and now there can be 5 each in the middle so our equation is 4*5*5*5*4 which is equal to 2000

 Mar 31, 2021
 #1
avatar+321 
+2
Best Answer

So in the question, it says it can't start or end with a vowel and the only vowel there is I and out of the 5 letters _ _ _ _ _ we now know that there are 4 possibilities for the 1st and last letter and now there can be 5 each in the middle so our equation is 4*5*5*5*4 which is equal to 2000

itachiuchihakujo Mar 31, 2021

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