Hi, On this site, do you know if there is a problem set (ranging from 500 level to 800 level) in the area of:
* Absolute Values
...similar to what @walker had posted for Probability/Combinatorics, or what Bunuel has for Tough questions (in his email signature)?
I was going to start with the "Question Banks" link listed here.. http://gmatclub.com/forum/viewforumtags.php
but wanted to see if there's any other collection I could try my hands on...
Thanks in advance!