This video is the starting point for everything GMAT DS. GMAT Data Sufficiency Basics.

About a third to 40% of the questions in the GMAT quant section are data sufficiency questions.

1. What is data sufficiency? What is the structure of a GMAT DS question?

Any data sufficiency question has 3 parts.
Part one: A question stem
Parts 2 and 3: 2 statements.

The task at hand is to evaluate whether the information given in these 2 statements is enough, is sufficient to decisively answer the question asked.

The video walks through the mechanics of answering a GMAT DS question.

What are the answer options for GMAT DS questions?
As with any GMAT quant question, GMAT DS questions also have 5 answer options.
A. Statement 1 ALONE is sufficient; statement 2 is not sufficient.
B. Statement 2 ALONE is sufficient; statement 1 is not sufficient.
C. Statements 1 & 2 TOGETHER are sufficient but are not sufficient independently.
D. Each statement is INDEPENDENTLY sufficient.
E. Statements together are NOT sufficient. Additional data is required.

5 illustrative examples have been solved to help understand these 5 answer options.

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Comments are closed.

  1. Stinkin Joe 3 years ago

    Thank you sir!! Very helpful 🙂👍

  2. Your approach to Data Sufficiency is elegant and comprehensive. Thank you

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