Math Question From 10 Reals Red book (second Edition)

<p>I forgot that Vehement’s already given a very lucid solution to this question at the top of “Consolidated Answers for 10RS Math Problems” thread
<a href=“http://talk.collegeconfidential.com/showthread.php?p=1206319#post1206319[/url]”>http://talk.collegeconfidential.com/showthread.php?p=1206319#post1206319&lt;/a&gt;&lt;/p&gt;