Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2007-part-03 — 185 problems (EN–VI) Question 128

Math Olympiad Vault · MathNet 2007-part-03 — 185 problems (EN–VI)

Question 128

Jack, Jill, and John play a game in which each randomly picks and then replaces a card from a standard 52 card deck, until a spades card is drawn. What is the probability that Jill draws the spade? (Jack, Jill, and John draw in that order, and the game repeats if no spade is drawn.)