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Lesson: Data Sufficiency Basic - 21

Method for Data Sufficiency

[Page 21 of 22]

The CAT Method for Data Sufficiency

Focus on the question stem.
Evaluate each statement separately.
Combine the statements, if necessary.

Value Questions
A sufficient statement will lead to one, and only one, number.

Yes/No Questions
A sufficient statement will lead to a definite "Yes" or a definite "No."

Strategic Guessing and Data Sufficiency
You can eliminate at least two answers after evaluating one statement.
Look out for statements with the same information.

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