Agree with gmatbattle on this one.
Stick to OG and prep material like this one: http://www.gmatpill.com/gmat-practice-t ... -questions
For OG - you will find these video explanations helpful to hone your approach: http://www.gmatpill.com/official-guide-gmat/
Stick to OG and prep material like this one: http://www.gmatpill.com/gmat-practice-t ... -questions
For OG - you will find these video explanations helpful to hone your approach: http://www.gmatpill.com/official-guide-gmat/
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