There were 17 people in a queue for a free wafer at Kathy's Cafe. Ethan was the fifth person in the queue. Xavier was the third last person in the queue. How many people were there between Ethan and Xavier?
Ethan's position: Number 5
Xavier's position: 17 - 3 + 1 = Number 15
Number of people between them
= 15 - 5 - 1
= 9
Answer(s): 9