A certain family party consisted of 1 grandfather, 1 grandmother, 2 fathers, 2 mothers, 4 children, 3 grandchildren, 1 brother, 2 sisters, 2 sons, 2 daughters, 1 father-in-law, 1 mother-in-law and 1 daughter-in-law. A total of 23 people, you might think. But, no; there were only 7 people present. Can you show how this might be?
Answer
The party consisted of 2 little girls and a boy, their father and mother, and their’s father’s father and mother.