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virtus Group Title

find the no. of ways in which 8 people can be seated at 2 round tables with 4 people sitting at each table?

  • 2 years ago
  • 2 years ago

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  1. Hashir Group Title
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    got it???

    • 2 years ago
  2. Hashir Group Title
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    acually its like ... choose four people ...then arrange them .... permutaion means choosing and aranging

    • 2 years ago
  3. hba Group Title
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    36

    • 2 years ago
  4. Hashir Group Title
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    that dot means multiplty

    • 2 years ago
  5. virtus Group Title
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    why does the answer in my solution book say this : 7x6x5x3x2x1x2

    • 2 years ago
  6. Hashir Group Title
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    wait a sec .... let me take a look at question again

    • 2 years ago
  7. hba Group Title
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    WAIT I HAVE A WAY

    • 2 years ago
  8. virtus Group Title
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    @hba having epiphanies are we?

    • 2 years ago
  9. hba Group Title
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    IF UR ASKED OF A ROW THEN n! IF UR ASKED ABOUT A CIRCLE OR ROUND ITS (n-1)! AND IF ITS A NECKLACE OR GARLAND ITS 1/2(n-1)!

    • 2 years ago
  10. hba Group Title
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    IN UR CASE IT WOULD BE (8-1)! =7!

    • 2 years ago
  11. hba Group Title
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    AND 2 TABLES SO U MULTIPLY IT BY 2 THEN

    • 2 years ago
  12. Hashir Group Title
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    naaaa

    • 2 years ago
  13. hba Group Title
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    Remember that a circular permutation is (n – 1)! Break the seating process into "activities" like this: 1) Choose the people who are seated at each table. C(8,4 = 8•7•6•5/4•3•2•1 = 70). When you choose for 1 table the other four automatically go to the other table. 2) Arrange the 4 people at table A: (4 – 1)! = 3! = 6 3) Arrange the 4 people at table B. Also 3! =6 So answer is C(8,4)•3!•3! = 70•6•6 = 2520

    • 2 years ago
  14. Hashir Group Title
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    he copied it from somewhere :D

    • 2 years ago
  15. Hashir Group Title
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    anyway ... nice work @hba :D

    • 2 years ago
  16. hba Group Title
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    You are free: to Share — to copy, distribute and transmit the work to Remix — to adapt the work

    • 2 years ago
  17. Hashir Group Title
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    ^^ LOL

    • 2 years ago
  18. virtus Group Title
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    hey @hba so you used combinations and not only permutations for this questions?

    • 2 years ago
  19. hba Group Title
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    yeah

    • 2 years ago
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