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In this video, we tackle a GRE math practice problem involving Peter and Wanda's number game. We'll explore two methods to solve the problem: algebraic and plugging in.
Problem Statement:
Peter and Wanda are playing a number game. If Peter’s number z is 200 percent of Wanda’s number, what is 20 percent of Wanda’s number in terms of z?
Methods Covered:
1. Algebraic Method: We will derive the relationship between Peter's and Wanda's numbers using algebraic equations.
2. Plugging In Method: We will solve the problem by substituting specific values to understand the relationship better.
Steps in Algebraic Method:
1. Define Peter's and Wanda's numbers.
2. Formulate the equation based on the given percentage.
3. Solve the equation to find the required percentage in terms of zzz.
Steps in Plugging In Method:
1. Choose convenient values for Wanda's number.
2. Calculate Peter's number based on the given percentage.
3. Determine 20 percent of Wanda's number and express it in terms of zzz.
Why Watch This Video?
• Perfect for GRE aspirants looking to strengthen their problem-solving skills.
• Detailed step-by-step explanation of both methods.
• Helpful tips and tricks for tackling similar problems in the GRE math section.
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