# Category Archives: GMAT Data Sufficiency

### GMAT Critical Reasoning vs Data Sufficiency: Two Sides of the Same Coin

Traditional GMAT wisdom suggests that the skills needed for success on the Verbal section overlap little, if at all, with one’s quantitative abilities. Given our educational system and the very fact that the GMAT has separate Quantitative and Verbal sections, such a distinction seems uncontroversial and downright obvious. But, as we all know, the structure and content of the GMAT can often run against our…

### GMAT Data Sufficiency: “I don’t know” vs “Not Sufficient”

If you’ve been preparing at all for GMAT data sufficiency, you’ve probably been confronted with situations in which the information in the statement seems inscrutable. You know that it’s telling you something, but you’re not quite sure what, if any, relevance the information has to the question in the prompt. This, in and of itself, is a fairly common situation. Even though almost all Data Sufficiency statements…

### Analyzing a 700+ Data Sufficiency Question

As a full-time GMAT geek, the question of what exactly constitutes a difficult GMAT question occupies more of my time than I’d like to admit. This curiosity was only reinforced two weeks ago, when I took my annual official GMAT. Much to my relief, I was able to again score a perfect 51 on the Quant (and, for anyone who’s curious, I have the score…

### GMAT Data Sufficiency: Breaking Your Assumptions

One of the most widespread mistakes I see students make on Data Sufficiency concerns the information they consider when evaluating a statement. To properly determine whether a statement is sufficient, you must be focused on using only the information given. If, for example, a statement only tells you that -10 < x < 10, but says nothing else, then you can’t assume that x is an integer, and you…

### The Logic of GMAT Data Sufficiency

I recently received an e-mail from someone undergoing a mini-crisis over GMAT Data Sufficiency. I’ve decided to share the e-mail and my thoughts with the GMAT world: “… so critical reasoning isn’t much of a problem, nor is problem solving. But I can’t, for the life of me, wrap my mind around data sufficiency. And, really, I don’t understand why it appears on the GMAT….

### The Logic of GMAT Data Sufficiency

I recently received an e-mail from someone undergoing a mini-crisis over GMAT Data Sufficiency. I’ve decided to share the e-mail and my thoughts with the GMAT world: “… so critical reasoning isn’t much of a problem, nor is problem solving. But I can’t, for the life of me, wrap my mind around data sufficiency. And, really, I don’t understand why it appears on the GMAT….

### The Most Common GMAT Data Sufficiency Mistake

As anyone who has prepared for the GMAT would attest to, the GMAT data sufficiency is probably the trickiest component of the test. Along with requiring an abundance of abstract thought, its strange wording and structure naturally induce students to make mistakes. Here, I’m going to discuss the #1 mistake students make on data sufficiency: They don’t evaluate the statements independently! Let’s look at a…