The Official Guide 13th Edition How To Quantitative: Page 166, #105

The Official Guide recommends solving this problem by applying the variables s and t to the number of students and the number of teachers, respectively. However, setting up algebraic equations isn’t always easy. You may want to try backsolving on this question instead. Start with …

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How to Prepare Efficiently for your GMAT Retake

Retaking the GMAT may not be for everyone. Please read our previous article – “Should I Retake the GMAT?” to decide whether it is wise for you to do so. If you decide it is, good luck and please read on! So you may not have …

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