If you haven't already done so, I'd suggest checking out Manhattan GMAT
's OG (Official Guide) Archer. It's an online interface for answering OG problems and measuring your performance. Time yourself on individual questions, mark the problems you guessed on, and note those you’d like to do again later. The tool is free, but if you buy the $14 version, you also get answer explanations to every quant problem in the Official Guide, written by our expert Manhattan GMAT
I hope you find this tool helpful!
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Matt Mapplebeck | Manhattan GMAT Online Marketing Associate | New York
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