Test Prep Resources
In-depth guides and strategy articles for the GMAT, GRE, and SAT — written to actually move your score.
How Long Should You Study for the GMAT?
GMAC's own guidance puts typical GMAT preparation at two to three months and 90 to 100+ hours for a strong score, but the real number depends on your score gap and weekly hours available. Here's how to size a realistic timeline and build a study plan around it.
July 16, 2026 GMATGMAT Weighted Average Problems: The See-Saw Method
The see-saw method turns two-group GMAT weighted average and mixture problems into a balance-beam ratio you can solve in seconds — but it breaks down past two groups or across multi-round removal-replacement problems. Four fully worked examples, the formulas for each case, and the five mistakes that most often flip the answer.
July 14, 2026