Question 1151321
.
<pre>

The integer part of the number  {{{57/2}}},  i.e.  28.    <U>ANSWER</U>
</pre>


If you want, you can solve it via formal algebra.


<pre>
    n + (n+1) = 57


    2n = 57 - 1

    2n = 56

     n = {{{56/2}}} = 28.      <U>ANSWER</U>
</pre>