GMAT Data Sufficiency questions are pretty unique compared to other question types. These questions do not test your ability to solve a problem. Instead, it tests your ability to analyze a problem and determine whether you have necessary data to solve the question.
Here are two common data sufficiency errors which you should try to avoid during the GMAT:
Choosing the wrong answer:
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As we suggested in an earlier article, one of the better strategies in this section is to remember the answer choices well since they remain the same. If you have done that, then you would know that the answer choice C indicates that both statements together are sufficient to solve the question. Many test takers, in a bid to solve the question fast, tend to combine both the statements. If this leads to the right approach, students tend to mark answer choice C. Big mistake! Examine both the statements individually first and then combine them. Analyze both the statements logically.
Solving the question:
Remember that the objective is not to arrive at an answer. You have to only see whether you have sufficient information to arrive at the answer. Students tend to waste time calculating equations, especially in single variable equations.
