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


  1. 4! + 4! = 48, right?

  2. 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.