Try the following ACT math practice question that tests your understanding of principles of counting when applied to the number of handshakes at a gathering.

A total of $28$ handshakes was exchanged at the conclusion of a gathering. Assuming that each participant shook hands with every other participant, the number of people present was:

- $\quad 56$
- $\quad 28$
- $\quad 14$
- $\quad 8$
- $\quad 7$

**Video Explanation**