Number of ways of choosing first person = 8
Number of ways of choosing second person = 6 (Out of 7 remaning, anyone can be chosen except his/her partner)
Number of ways of choosing third person = 4 (Out of 6 remaning anyone can be chosen except partners of two selected person)
Total = 8*6*4
But this contain duplicates. To remove duplicates divide by the factorial of number of people in the committee.
So total ways = 8*6*4/3! = 32
SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008