Final answer:
A social group consisting of five persons contains ten unique relationships according to Georg Simmel. A mathematical formula is used to calculate the number of relationships.
Step-by-step explanation:
Accoring to Georg Simmel, a social group consisting of five persons contains ten unique relationships. To understand this, consider a dyad (a group of two) has one relationship, and a triad (a group of three) has three relationships. As we add more members to the group, the number of relationships increases substantially because each member can have a relationship with every other member. The formula to determine the number of relationships in a group is n(n - 1) / 2, where n is the number of people in the group. For a group of five persons, the calculation would be 5(5 - 1) / 2, which equals 10.