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virtus Group Title

10 people are arranged around a table. A chairperson and secretary are to be elected. How many arrangements are possible such s that the chairperson and secretary are opposite each other

  • 2 years ago
  • 2 years ago

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  1. hba Group Title
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    Remember that a circular permutation is (n – 1)!

    • 2 years ago
  2. hba Group Title
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    so 9!2!

    • 2 years ago
  3. hba Group Title
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    is ur ans i guess

    • 2 years ago
  4. virtus Group Title
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    answer says 7! x 8

    • 2 years ago
  5. Hashir Group Title
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    its 8!

    • 2 years ago
  6. Hashir Group Title
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    because

    • 2 years ago
  7. hba Group Title
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    ohh ok i get it now remove the 2 people (chairperson and secretary) u have total 8 left acc to circular perm 7!

    • 2 years ago
  8. Hashir Group Title
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    the Secretary and president is not to be arranged

    • 2 years ago
  9. virtus Group Title
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    OHHHH i got it they are fixed right

    • 2 years ago
  10. Hashir Group Title
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    therefore the rest can be arranged

    • 2 years ago
  11. Hashir Group Title
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    thus 8!

    • 2 years ago
  12. Hashir Group Title
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    got it dumb pants

    • 2 years ago
  13. Hashir Group Title
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    ???????

    • 2 years ago
  14. virtus Group Title
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    ya dumbpants has got it!

    • 2 years ago
  15. ujjwal Group Title
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    Suppose there is no chairperson and secretary. Now you have eight members. who can be arranged in 7! Now one among the pair of secretary and chairperson can be seated in 8 ways around the table ( the other will be just opposite). so, you have a total of 7! \(\times\) 8

    • 2 years ago
  16. Hashir Group Title
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    i m doing the same thing .... @ujjwal

    • 2 years ago
  17. ujjwal Group Title
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    yeah! great Job!! @Hashir

    • 2 years ago
  18. Hashir Group Title
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    what the hell is what ?

    • 2 years ago
  19. Hashir Group Title
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    idk

    • 2 years ago
  20. hba Group Title
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    dude u are not allowed to ask for it

    • 2 years ago
  21. hba Group Title
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    @ujjwal

    • 2 years ago
  22. virtus Group Title
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    awks.... ummm well thanks everyone!

    • 2 years ago
  23. hba Group Title
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    welcome

    • 2 years ago
  24. Hashir Group Title
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    pleasure

    • 2 years ago
  25. ujjwal Group Title
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    Great! close it now @virtus

    • 2 years ago
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