How do we know what the possible values for a variable on the GMAT are? First of all, consider this DS problem 1) Is P > Q? Statement #1: P = 5*Q Statement #2: P = Q + R For folks who are not as comfortable with math, or are a bit rusty with math, […]

# Archive | GMAT Data Sufficiency

Ace data sufficiency GMAT questions by practicing with these expertly-written problems.

Learn how to use these formal Geometry rules to your advantage on the GMAT Data Sufficiency section! A reminder about Data Sufficiency If this question format is new to you, read this post. If you have done DS questions for a while, it’s still worthwhile to remind yourself of the basics. You don’t actually […]

This is, among other things, a case study of one of the harder Data Sufficiency problems in the OG. Percents as Multipliers You can find several good tips on percent problems at this post. The most relevant here is the idea of a percent as multiplier. To change a percent into a multiplier: (a) change […]

Recently, in a GMAT forum, someone asked: “I am facing this problem with plugging numbers on the DS section. I realized this happens when I miss plugging in some specific numbers that just turn around the answer of the question. When I plug in, say, 2, the statement is sufficient, but plug in -1/2 and […]