<PRE><B>Question 1169462</B>
.
&lt;pre&gt;

The governing inequality is this one


    82 &lt;= {{{(80+84+x)/3}}} &lt;= 88.


Multiply both sides by 3


    82*3 &lt;= 164 + x &lt;= 88*3


Simplify


    82*3 - 164 &lt;= x &lt;= 88*3 - 164   or


       82      &lt;= x &lt; = 100.    &lt;U&gt;ANSWER&lt;/U&gt;
&lt;/pre&gt;

Solved.



</PRE>