at a party,a grandfather,a grandmother,two fathers,two mothers,four children,three grandchildren,one brother,two sisters,two sons,two daughters,one father-in -law,one mother-in-law and one daughter-in-law sit at a table.at least how many people are sitting at the table?

a)7 (b)15 (c)22 (d)23

• 7
  One couple of grand father and grandmother ... 2 persons... A and B
  one couple of father ( son of grand father) and mother ( daughter in law of senior most couple).... 2 persons... C & D.
  Two daughters and one son of C and D..... 3 persons
  total 7 persons.
• 10 years agoHelpfull: Yes(1) No(0)