Monday, June 8, 2009

Problem 32 - GMAT Combinatorics

Juan and his five friends will sit on six fixed seats around a circular table. If Juan must sit on the seat closest to the window and Jamal must sit next to Juan, in how many can Juan and his five friends sit?

(A) 20
(B) 24
(C) 48
(D) 72
(E) 120
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4 comments:

  1. AnonymousJune 16, 2009 at 9:05 AM

    4! + 4! = 48, right?

    ReplyDelete
  2. blaoismOctober 6, 2009 at 11:11 PM

    I think the same, 2.4!

    ReplyDelete
  3. Vikram SikandMarch 13, 2010 at 4:56 PM

    2.4!

    ReplyDelete
  4. AnonymousFebruary 17, 2012 at 8:06 AM

    i think it will be 2.4!/2. As in a circular arrangement we have to divide the result by 2 since the clockwise and anticlockwise arrangement will look the same.

    ReplyDelete

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