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Archive | Estimation and Approximation (Ballparking)

GRE Quantitative Comparison Tip #5 – Estimation with a Twist

Here’s the whole series of QC tips: Tip #1: Dealing with Variables Tip #2: Striving for Equality Tip #3: Logic over Algebra Tip #4: Comparing in Parts Tip #5: Estimation with a Twist   In my last post, we solved the following question:         A. The quantity in Column A is greater B. The quantity […]

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GRE Quantitative Comparison Tip #4 – Comparing in Parts

To set up today’s Quantitative Comparison (QC) strategy, please solve the following question:           A. The quantity in Column A is greater B. The quantity in Column B is greater C. The two quantities are equal D. The relationship cannot be determined from the information given There are several different ways to solve this question. […]

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