HI! First of all, there are total 12 + 2 + 6 = 20 pairs of socks. Probability of getting a pair of white socks the first time is 12/20. Probability of getting a pair of gray socks without replacement, if first one was white, is 2/19 Therefore the probability t<span>hat she will take a white pair and gray pair</span> without replacement is 6/95 (I multiplied the two probabilities) Let me know if there are any other questions!
4 tables. 4*4 is 16, meaning that even if 4 players want to sit together it doesn't make a difference. With 16 players and 4 at a table we are going to need 4 tables.
