How to Approach Data Sufficiency Questions

Data sufficiency problems tend to be rather difficult for individuals new to the GMAT since the question type is unlike any question type on other standardized tests. We strongly encourage you to spend considerable time practicing this question type and developing a plan of attack that works for you. The logic of the answer choices is arranged as follows:
data sufficiency logic map

You may consider approaching data sufficiency questions as follows:

  1. Read the question thoroughly.
  2. Determine whether the question is a value question or a yes/no question.
  3. Glance at the two statements.
  4. Simplify the question.
  5. Simplify and evaluate statement 1.
  6. Simplify and evaluate statement 2.