Hello,
This is my first post
![Smile :-)](./images/smilies/smile.png)
Here is my question: when practicing the math section, I have a really easy time with the easy questions. For example, I got about 95% correct on teh first 100 DS and PS problems of OG 11. What I would need is a good series (like 100-200 questions) of the tougher / toughest questions so I can: 1. practice the harder ones and 2. more importantly, try to solve the harder ones in 2 minutes or so. Does anyone have a good reference for complete sets of hard questions? I find plenty of good examples on this forum, but it'd help me to have a bunch of them in one place.
Thanks in advance!
Mr Muggles