a box contains 14 pairs of shoes ( 28 shoes in total ). if two shoes are selected at random, what it is the probability that they are matching shoes?	Choose the correct choice:  A) 1 / 190  B) 1 / 20  C) 1 / 19  D) 1 / 27  E) 1 / 9
<gadget id="calculator">28 - 1</gadget>
<output>27</output>

<gadget id="calculator">1 / 27</gadget>
<output>1/27 = around 0.037037</output>

<result>D</result>
a box contains 14 pairs of shoes ( 28 shoes in total ). if two shoes are selected at random, what it is the probability that they are matching shoes?
divide(const_1, subtract(28, const_1))
"the problem with your solution is that we do n ' t choose 1 shoe from 28 but rather choose the needed one after we just took one and need the second to be the pair of it . so , the probability would simply be : 1 / 1 * 1 / 27 ( as after taking one at random there are 27 shoes left and only one is the pair of the first one ) = 1 / 27 answer : d"