GRE QUANTITATIVE COMPARISON. Quantitative Comparison - Strategy Analyze Centered Information, Columns, and Quantities Approach Strategically – variety.

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Presentation transcript:

GRE QUANTITATIVE COMPARISON

Quantitative Comparison - Strategy Analyze Centered Information, Columns, and Quantities Approach Strategically – variety of approaches to solving these questions [Note: Quantitative Comparison questions ask you to compare 2 mathematical expressions: Quantity A and Quantify B]

Quantitative Comparison - Tips Memorize answer choices to save time Choices are always the same Wording and order never vary When there is at least 1 variable in a problem, try to demonstrate two different relationships between quantities If you can find 2 different relationships, then choice (D) is correct Compare the value of each “piece” in each quantity If every “piece” in one quantity is greater than a corresponding “piece” in the other other quantity and if operation is addition or multiplication, then the quantity with the greater individual values will have the greater total value

Quantitative Comparison – Tips (continued) Make one quantity look like another When quantities A and B are expressed differently, change the format of one quantity to match the other – this makes comparison easier Do the same thing (operation) to both quantities Simplify complex comparisons by performing addition, subtraction, multiplication, and division operations on both quantities to make them simpler Don’t be tricked my misleading information Don’t assume anything. Use only information that is given or information based on properties or theorems For example: Don’t assume angles are equal or that all variables are positive integers – fractions or negative numbers impact relationship between quantities

Quantitative Comparison - Tips (continued) Remember to consider other possibilities If an answer looks obvious, it may be a trap Example: Product = 6 (2 x 3 = 6; -2 x -3 = 6; -1 x -6 = 6) Don’t fall for look alikes Two similar expressions may be mathematically different Be extra cautious with expressions involving parentheses or radicals