The magician starts with the birthday boy and moves counterclockwise, passing up 75 pieces of paper, numbered one through 75. He cycles around the circle until all the pieces are distributed. He then uses a random number generator to pick an integer between one through 75 and chooses to volunteer with that number. So I encourage you to pause this video and think about whether this one, method two, whether that one is fair. Well, method two is the same as method one, except for instead of using 100 pieces of paper, we're using 75 pieces of paper. And so we have to think about is 75 divisible by 15? And 75 is.