Ratios are a fundamental concept in GMAT Quant, testing your ability to understand relationships and manipulate values efficiently. This guided path will take you from the core principles to the advanced strategies and shortcuts needed for a top score.
Start with the core definition and walk through a step-by-step example of how to simplify ratios to their lowest terms.
Learn the fundamental method for solving word problems by representing unknown values with a common multiplier 'x'.
Master the methods for distributing a total amount into a given ratio and for working backwards to find the total from a single part.
Master the crucial technique for combining two separate ratios (e.g., a:b and b:c) into a single, continuous ratio (a:b:c).
Walk through a real-world application of ratios in partnership problems, where both investment and time must be considered.
Learn how to convert statements of multiples (e.g., 3A = 4B) into the correct A:B ratio, a common trap in advanced problems.
Apply your knowledge to the most unique GMAT question type. Learn to distinguish between questions asking for a ratio vs. a value.
Test your ability to solve for the "fourth proportional" and find the "mean proportional," key skills for certain problem types.
Explore the advanced properties of equal ratios that can be used as powerful shortcuts in the toughest GMAT questions.
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