This is a simple proportion problem. On the left side of the colon : there's a 1 and xy. On the right it's yz and a 2. This means for every one xy there will be two yz. So, if there are 2 xy there are 4 yz
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!
