An organisation has 3 committees,
only 2 persons are members of all 3
committee but every pair of committee
has 3 members in common. what is the
least possible number of members on
any one committee?
a) 4
b) 5
c) 6
d) 1

• applying set theory.
  let x be the number of members in each committee
  then:
  x-(3-3)-(3-3)-3= x-3
  now x-3>0 so the least possible value would be 4
• 10 years agoHelpfull: Yes(13) No(1)
• thinking logically,
  2 members r common fr 3 commities,so fr a pair of commitee to have 3 members in common it has to b another mutual member..so for three commitiess there are 3 pairs and two additional members mutual fr each comitte.
  so totally 4 members
• 10 years agoHelpfull: Yes(10) No(1)
• answer is :-5
  committe1:X,Y,Z,T
  committe2: X,Y,Z,P
  COMMITTE3: X,Y,T,P
• 10 years agoHelpfull: Yes(4) No(6)
• 4 is the ans
  
• 10 years agoHelpfull: Yes(3) No(3)
• correct option:a)
  
  ans is 4
  lets say each commite as a b and c
  
  a has two member in common with b and c
  also it has 1 member in commen with b who is not in c and 1 member common with c not in b
  so they all add up to 4
• 10 years agoHelpfull: Yes(3) No(0)
• 5 will be the ans
  
  
• 10 years agoHelpfull: Yes(2) No(3)
• logical..
  suppose member A and member B is common in all 3 committees..
  but 3 members are common among the 3 committees...so we have to add 2 more different member to make 3 members common among pairs..gropus can be formed as..
  ABCD, ABCE, ABDE...these are the 3 committees..
  
• 10 years agoHelpfull: Yes(2) No(0)
• Giv me d crct sltn plzzzz
• 10 years agoHelpfull: Yes(0) No(0)
• anyone plzzzzzzzzzzzzzzzzzzzzz giv me d sltn
• 10 years agoHelpfull: Yes(0) No(0)
• 4 members at least
• 10 years agoHelpfull: Yes(0) No(0)
• there r already 2 members common in all groups so two pairs have 2 members in common to make third one common b/w pairs we have to add members in every pair so as to make three members common b/w 2 groups
  1 1 1
  1 1 1
  1*1*** 1*1** 1**1***
  so answer is 4
• 10 years agoHelpfull: Yes(0) No(0)