Jones has 6 pairs of shoes; each pair is a different color. If Kim randomly selects 2 shoes without replacement from the 12 shoes, what is the probability that she will select 2 shoes of the same color?  Choose the correct choice.
A) 2/5 B) 1/13 C) 1/9 D) 1/10 E) 1/25
Can be tackled in this way as well: Probability of selecting any 1 out of 12 shoes = 12/12= 
<gadget id="calculator">12/12</gadget>
<output>1</output>
1   Probability of selecting the next shoe (out of 13 available) having the same color= 1/13 (as after selecting the 1st one, there is only 1 another shoe left with the same color).   Thus the total probability = 1*1/13=1/13.   1/13 is the correct answer.
<result>B</result>
Jones has 6 pairs of shoes; each pair is a different color. If Kim randomly selects 2 shoes without replacement from the 12 shoes, what is the probability that she will select 2 shoes of the same color?