counting pasword character when repeated allowed [closed]












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How many six character password can be made using only A, B,C,D,E,F, 1, 2, 3 , 4, 5, 6 if
i. No character is reused
ii. character can be repeated as long as they are not adjacent










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closed as off-topic by Namaste, John Douma, Saad, Tianlalu, Leucippus Dec 24 '18 at 0:34


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    -1












    $begingroup$


    How many six character password can be made using only A, B,C,D,E,F, 1, 2, 3 , 4, 5, 6 if
    i. No character is reused
    ii. character can be repeated as long as they are not adjacent










    share|cite|improve this question











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    closed as off-topic by Namaste, John Douma, Saad, Tianlalu, Leucippus Dec 24 '18 at 0:34


    This question appears to be off-topic. The users who voted to close gave this specific reason:


    • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Namaste, John Douma, Saad, Tianlalu, Leucippus

    If this question can be reworded to fit the rules in the help center, please edit the question.



















      -1












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      -1


      0



      $begingroup$


      How many six character password can be made using only A, B,C,D,E,F, 1, 2, 3 , 4, 5, 6 if
      i. No character is reused
      ii. character can be repeated as long as they are not adjacent










      share|cite|improve this question











      $endgroup$




      How many six character password can be made using only A, B,C,D,E,F, 1, 2, 3 , 4, 5, 6 if
      i. No character is reused
      ii. character can be repeated as long as they are not adjacent







      combinatorics






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      edited Dec 24 '18 at 5:17







      Hajer Bagdady

















      asked Dec 23 '18 at 18:01









      Hajer BagdadyHajer Bagdady

      41




      41




      closed as off-topic by Namaste, John Douma, Saad, Tianlalu, Leucippus Dec 24 '18 at 0:34


      This question appears to be off-topic. The users who voted to close gave this specific reason:


      • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Namaste, John Douma, Saad, Tianlalu, Leucippus

      If this question can be reworded to fit the rules in the help center, please edit the question.







      closed as off-topic by Namaste, John Douma, Saad, Tianlalu, Leucippus Dec 24 '18 at 0:34


      This question appears to be off-topic. The users who voted to close gave this specific reason:


      • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Namaste, John Douma, Saad, Tianlalu, Leucippus

      If this question can be reworded to fit the rules in the help center, please edit the question.






















          1 Answer
          1






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          $begingroup$

          You have $12$ choices for the first character.



          You then have $11$ choices for the second character (anything except whatever you chose for the first character).



          Similarly, $11$ choices for the third character (anything except whatever you chose for the second character).



          And also $11$ choices for the fourth, fifth and sixth character.



          Hence, there is a total of $$12 times 11 times 11 times 11 times 11 times 11 = 1932612$$ possible passwords.






          share|cite|improve this answer









          $endgroup$




















            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3












            $begingroup$

            You have $12$ choices for the first character.



            You then have $11$ choices for the second character (anything except whatever you chose for the first character).



            Similarly, $11$ choices for the third character (anything except whatever you chose for the second character).



            And also $11$ choices for the fourth, fifth and sixth character.



            Hence, there is a total of $$12 times 11 times 11 times 11 times 11 times 11 = 1932612$$ possible passwords.






            share|cite|improve this answer









            $endgroup$


















              3












              $begingroup$

              You have $12$ choices for the first character.



              You then have $11$ choices for the second character (anything except whatever you chose for the first character).



              Similarly, $11$ choices for the third character (anything except whatever you chose for the second character).



              And also $11$ choices for the fourth, fifth and sixth character.



              Hence, there is a total of $$12 times 11 times 11 times 11 times 11 times 11 = 1932612$$ possible passwords.






              share|cite|improve this answer









              $endgroup$
















                3












                3








                3





                $begingroup$

                You have $12$ choices for the first character.



                You then have $11$ choices for the second character (anything except whatever you chose for the first character).



                Similarly, $11$ choices for the third character (anything except whatever you chose for the second character).



                And also $11$ choices for the fourth, fifth and sixth character.



                Hence, there is a total of $$12 times 11 times 11 times 11 times 11 times 11 = 1932612$$ possible passwords.






                share|cite|improve this answer









                $endgroup$



                You have $12$ choices for the first character.



                You then have $11$ choices for the second character (anything except whatever you chose for the first character).



                Similarly, $11$ choices for the third character (anything except whatever you chose for the second character).



                And also $11$ choices for the fourth, fifth and sixth character.



                Hence, there is a total of $$12 times 11 times 11 times 11 times 11 times 11 = 1932612$$ possible passwords.







                share|cite|improve this answer












                share|cite|improve this answer



                share|cite|improve this answer










                answered Dec 23 '18 at 18:09









                glowstonetreesglowstonetrees

                2,375418




                2,375418















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