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Working with Formulas
Summary
The GRE exam often includes questions that require working with formulas, presenting a unique opportunity to apply mathematical reasoning without the need for outside knowledge.
- The GRE provides formulas from real-world contexts and asks questions that involve plug-in and solve, solving for a variable, or proportional reasoning.
- For plug-in and solve questions, test-takers are given specific values to substitute into the formula to find the unknown variable.
- Solving for a variable requires manipulating the formula to isolate a specific variable, often involving algebraic operations.
- Proportional reasoning questions explore the relationship between variables when certain quantities are scaled up or down, necessitating a strategic choice of values to simplify the problem-solving process.
- Common mistakes in solving these questions can be avoided by understanding the correct mathematical operations and relationships between variables.
Chapters
00:01
Understanding Formulas on the GRE
02:16
Solving for Variables
04:48
Mastering Proportional Reasoning
