There were 19 people in a queue for a free puff at Kylie's Cafe. Henry was the eighth person in the queue. Billy was the fifth last person in the queue. How many people were there between Henry and Billy?
Henry's position: Number 8
Billy's position: 19 - 5 + 1 = Number 15
Number of people between them
= 15 - 8 - 1
= 6
Answer(s): 6