Question 1015535
<pre>
5 LETTERS, CHOOSE 2 = 5C2 = (5•4)/2! = 20/2 = 10

Here they are:


{m,o}, {m,u}, {m,s}, {m,e}, 
{o,u}, {o,s}, {o,e}, 
{u,s}, {u,e}, 
{s,e}

Edwin</pre>