GMAT Data Insights: How to Master the Third Section
The GMAT Data Insights section gives you 20 questions in 45 minutes, and it counts for exactly one third of your score: each of the three Focus Edition sections is scored 60 to 90 and weighted equally in the 205 to 805 total (mba.com, GMAC, 2026). Mastering it comes down to three jobs. Learn the five question formats until none of them feels new. Decide in advance when the on-screen calculator helps and when it slows you down. Then drill mixed, timed sets until pacing is automatic. This guide takes each job in order.
What is on the GMAT Data Insights section?
Data Insights collects formats that used to live in different parts of the exam. It absorbs the content of the old Integrated Reasoning section and adds Data Sufficiency, which moved over from Quant, and the combined section now counts fully in the total score (mba.com, 2026). Five question types appear. The pacing figures below are working targets, not official rules: 20 questions in 45 minutes gives you an average of about two and a quarter minutes each, and some formats deserve more of that budget than others.
| Question type | What it tests | Rough pacing target |
|---|---|---|
| Data Sufficiency | Whether the given statements provide enough information to answer the question. You judge sufficiency, you do not compute the answer. | About 2 minutes |
| Multi-Source Reasoning | Combining evidence spread across tabs of text, tables, and charts, then judging what follows from the whole set. | About 3 minutes per question, including one skim of the tabs |
| Table Analysis | Sorting and reading a data table, then evaluating each statement against it as true or false, or yes or no. | About 2 and a half minutes |
| Graphics Interpretation | Reading a chart or diagram accurately and completing statements about it from dropdown choices. | About 2 minutes |
| Two-Part Analysis | A quant or verbal problem whose answer has two linked parts, selected from the same list of options. | About 2 and a half to 3 minutes |
Several of these formats ask you to evaluate multiple statements inside one question, and credit is all or nothing: every part must be right for the question to count. That should shape your habits. One careless read of a single statement erases the work you did on the other two.
Why does Data Insights feel unfamiliar?
Three reasons. First, nothing in most classrooms looks like it. Standard math courses train you to compute an answer; Data Sufficiency asks whether an answer could be computed, which is a different mental habit and takes deliberate practice to build. Second, the section refuses to stay in one lane. A Two-Part Analysis question may be pure algebra, the next may be pure verbal reasoning, and Multi-Source Reasoning demands both at once. Third, the section is young. It exists because the 2024 reset folded Integrated Reasoning and Data Sufficiency into a single scored section, as our guide to what changed in the GMAT Focus Edition explains, so older prep materials tend to underweight it or skip it entirely.
Unfamiliarity is a fixable problem, and it cuts both ways. Since all three sections carry equal weight, an hour spent repairing a weak Data Insights skill moves your total exactly as much as an hour spent anywhere else.
How should you use the on-screen calculator?
Data Insights is the only section of the GMAT Focus Edition with an on-screen calculator. That sounds like a gift. Misused, it is a trap: the calculator is basic, and clicking through it is slower than estimating. Three rules keep it in its place.
- Estimate first. When the statements or choices are far apart, rounding gets you there faster than exact arithmetic ever will.
- Keep it closed on Data Sufficiency. Sufficiency questions ask whether the information is enough, not what the value is. If you are computing, you have usually already answered the real question and are spending time proving it.
- Reserve it for grunt work. Percent changes on ugly numbers in a Table Analysis question, or a weighted average buried in a Multi-Source tab: that is what it is for.
Practice with a plain, basic calculator during drills. If your habit is a phone calculator with history and parentheses, the test-day version will feel slower than you expect at exactly the wrong moment.
What are the most common mistakes?
The same handful of errors shows up again and again in Data Insights practice.
- Solving Data Sufficiency to the end. Computing a value the question never asked for is the classic time leak in this section. The fix is a hard stop, which we cover in the two minute rule for Data Sufficiency.
- Reading every Multi-Source tab in depth up front. Skim for structure first: learn what each tab contains, not every number in it. Return for detail only when a question demands it.
- Treating the section as pure math. Much of Data Insights is verbal work: deciding what an inference does and does not follow from the evidence. Test takers who skip that framing miss questions they could compute perfectly.
- Pacing evenly. Twenty equal slices of 45 minutes is the wrong plan. Multi-Source questions need more time, Graphics Interpretation often needs less, and banking seconds early buys calm later.
- Ignoring the review tools. The Focus Edition lets you bookmark questions and change up to 3 answers per section (mba.com, 2026). Guess, bookmark, move on, and come back with fresh eyes. Stalling on one hard multi-part question is how a section collapses.
What drill sequence builds the section?
Work in stages, and do not skip ahead. Each stage assumes the habits of the one before it.
Stage 1: format familiarity, untimed
Work one question type at a time with no clock. The goal is that on test day you never spend a second figuring out what a format wants from you. For Data Sufficiency, memorize the answer choices until they are reflex.
Stage 2: single-type sets, timed
Sets of ten questions of one type against the pacing targets in the table above. Log every miss with a reason: misread, concept gap, or time pressure. Each category points to a different fix, and an unlabeled error log fixes nothing.
Stage 3: mixed sets with a review pass
Mixed sets of ten in about 22 minutes. Practice the real mechanics: bookmark anything that stalls you, finish the set, then use whatever time remains to revisit. This is also where spaced review earns its keep. Retire a missed question only after you answer it correctly again days later, not minutes later.
Stage 4: full sections
Full 20 question, 45 minute sections under test conditions. Vary where the section falls in your practice order, since the Focus Edition lets you choose section order on test day (mba.com, 2026). Score each section, review it honestly, and feed the misses back into Stage 2.
None of this is exotic. Data Insights rewards the same things the other two sections do: accurate reading, honest review, and pacing decisions made before the clock starts. Treat it as a full third of the exam, because on the GMAT Focus Edition, that is exactly what it is.