Question 1157048
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            Here I present another version of the solution and the answer to part  (a).



From the context,  my understanding of part  (a)  is that


<pre>
    There are 4 separate black socks in the drawer (not 4 pairs of black socks, as the tutor @VFBundy assumes);

    There are 11 separate blue socks in the drawer (not 11 pairs of blue socks, as the tutor @VFBundy assumes);

    There are 3 separate white socks in the drawer (not 3 pairs of white socks, as the tutor @VFBundy assumes);

    There are 5 separate brown socks in the drawer (not 5 pairs of black socks, as the tutor @VFBundy assumes).
</pre>

Then the solution and the answer are  


<pre>
    P = {{{(11-1)/(4+(11-1)+3+5)}}} = {{{10/22}}} = {{{5/11}}}.    <U>ANSWER</U>
</pre>