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Need Hard DS questions for practice.

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by stanleyeales » Fri Aug 26, 2011 8:33 am
I analyzed my tests and found that I get hard DS questions wrong. I am scoring 700-720 in tests but I am quite sure that I can raise this score if I get access to some good high level practice.

I've already completed:
1. OG12
2. All manhattan guides.

Is there something like collection sorted(by difficulty) DS questions from 1000DS document? I have GMAT in two weeks and really dont want to buy another book.
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Source: — Data Sufficiency |