What is a data sufficiency question?

Answer 1

For this type problem, you will be asked a question and be given two statments. The multiple choice answers will have you decide if either, both, or neither of the statements are sufficient to answer the question. For example:

What is the value of 4x - 7y?

A. x/7 = y/4

B. x = 14

1. Statement A is sufficient but statement B is not sufficient.
2. Statement B is sufficient but statement A is not sufficient.
3. Both statements are sufficient, but neither statement alone is sufficient.
4. Each statement alone is sufficient.
5. Statements A and B together are not sufficient.