Boundary Case
GRE glossary · Quantitative Reasoning
Definition
An extreme or endpoint value used to test whether a Quantitative Comparison relationship is fixed.
Boundary Case in plain English
Test endpoints and extreme legal values because they expose changing relationships quickly. One valid case with A greater and another with B greater proves the comparison cannot be determined.
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Practice Boundary Case
In a citywide recycling audit, p is an odd integer and q=p+1. Quantity A: p+q Quantity B: 2p+1
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