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Target Test Prep Representative
Joined: 12 Sep 2018
Status:Founder & CEO, Target Test Prep
Affiliations: Target Test Prep
Posts: 1476
Given Kudos: 5
Don't Be Afraid to Test Numbers in Quantitative Comparison Questions
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12 Apr 2024, 07:32
12 Apr 2024, 07:32
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Expert Reply
Don’t Be Afraid to Test Numbers in Quantitative Comparison Questions
👋 Hello, my friends at GRE Prep Club!
While many Quantitative Comparison questions can be answered by simplifying or solving algebraic expressions (as we did above) or using formulas, some cannot. In such cases, testing various possible values for variables may help determine which quantity is greater. When we plug in numbers, however, we do not do it blindly. We use the given information to guide us on which numbers to test, and then we can strategically consider testing the following types of numbers:
- Zero
- One
- Positive proper fraction
- Negative proper fraction
- Positive integer
- Negative integer
Memorize this list. Keep in mind that it is rare you will need to test all six types of numbers to arrive at a correct answer. In fact, the goal is to test the fewest numbers possible.
Warmest regards,
Scott Woodbury-Stewart
Founder & CEO, Target Test Prep
gmatclubot
Don't Be Afraid to Test Numbers in Quantitative Comparison Questions [#permalink]
12 Apr 2024, 07:32
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