A class is practicing handshakes. There's a total of twelve people in the class. Each student has to shake hands with everyone in the class exactly once at the start of class and once at the end of class. Holly is in the class. What is the total number of handshakes that Holly will give?

Answer 1

Since Holly has to shake hands with everyone in the class exactly once at the start of class and once at the end of class, she will give a total of 2*(12-1) = 22 handshakes. Holly will give a total of 22 handshakes.