Data Sufficiency is unique to only the GMAT. You are given a problem and two data sets. It is up to you to determine which data set needs to be used to solve the problem.
The answer choices for Data Sufficiency are always the same.
A: Statement (1) by itself is sufficient
B: Statement (2) by itself is sufficient
C: Statements (1) and (2) taken together are sufficient, but neither by itself
D: Either statement by itself is sufficient
E: Both statement taken together are not sufficient
Memorizing these answers can same much time on test day.
