GRE Word Problems: Percentage, Ratio and Proportion, Work Rate and Time, Speed and Distance, Mixture and Allegation, Age and Digit, Interest, and Set:

Percentage

  1. Basic Percentage Calculations
  2. Percentage Increase and Decrease
  3. Successive Percentage Changes
  4. Applications in Profit, Loss, and Discounts

Ratio and Proportion

  1. Understanding Ratios and Simplifications
  2. Proportions and Direct/Inverse Variations
  3. Applications in Real-Life Problems
  4. Combining Ratios

Work Rate and Time

  1. Work and Efficiency Relationships
  2. Combined Work Rate of Multiple Entities
  3. Pipes and Cistern Problems
  4. Time and Effort Optimization

Speed and Distance

  1. Basic Speed, Time, and Distance Problems
  2. Relative Speed
  3. Average Speed Calculations
  4. Problems Involving Trains, Boats, and Streams

Mixture and Allegation

  1. Mixing Two or More Quantities
  2. Weighted Average Applications
  3. Solving Problems Using Allegation Rule
  4. Applications in Profit and Loss

Age and Digit Problems

  1. Age Relationships and Comparisons
  2. Finding Unknown Ages
  3. Digit Problems Involving Number Properties
  4. Reverse Digit Problems

Interest

  1. Simple Interest Formula and Applications
  2. Compound Interest and Growth Rates
  3. Difference Between Simple and Compound Interest
  4. Applications in Real-Life Financial Problems

Set Theory

  1. Basics of Sets and Venn Diagrams
  2. Union and Intersection of Sets
  3. Two-Set and Three-Set Problems
  4. Applications in Counting and Probability