MAT Data Analysis and Sufficiency: How to Prepare

Thirty marks that come from reading, not remembering

Every MAT paper has 150 questions: five sections of 30 questions each, to be finished in 120 minutes. One of those five is Data Analysis and Data Sufficiency. All 30 of its questions count towards your composite score out of 800, and the usual marking applies — one mark for a correct answer, a quarter mark cut for a wrong one. So this single section can move your score by a bigger margin than most students expect.

Here is the part that should relax you. This section has almost nothing to memorise. There are no theorems and no formula sheets beyond school arithmetic. It tests whether you can read a chart quickly, pick the right numbers out of it, and decide under time pressure. Students fear it because they prepare it like a maths chapter. That is the wrong frame. It is a speed and judgement section, and speed can be trained in weeks. Our section-wise strategy guide shows where these 30 questions sit inside a full 600-plus plan; this post goes deep into the section itself.

What appears in these 30 questions

AIMA does not publish a chapter-wise syllabus, but papers and official practice material over the years settle into a familiar set:

• Tables — raw numbers in rows and columns, often with totals to work out.
• Bar graphs — simple bars, and stacked bars where one bar holds several parts.
• Pie charts — shares of a whole, usually asking you to convert a slice into a number.
• Line graphs — trends over years, growth and decline questions.
• Mixed charts — one question that uses two data sources together, say a table plus a pie.
• Caselets — the data hidden inside a paragraph of text instead of a chart.
• Venn diagrams — two or three overlapping groups, who belongs where.
• Data comparison — deciding which of two quantities is bigger.
• Data sufficiency — the odd one out, explained in the next section.

The exact mix changes from session to session, so prepare the full list, but give tables, bar graphs and pie charts the most practice time. They carry the bulk of the questions in most papers.

Data sufficiency: you decide, you do not solve

A data sufficiency question looks strange the first time. You get a question, then two statements of information, and the options ask you to say which statement is enough to answer the question — the first alone, the second alone, both together, or neither. You are never asked for the answer itself. You are only asked whether the answer can be found.

The method is fixed, and you should run it the same way every single time. Test statement one alone and ignore statement two completely. Then test statement two alone and ignore statement one. Only if each fails alone do you combine them. The biggest time leak is actually solving the problem to the end. The moment you know an answer is findable, stop. You have your option.

The trap that costs the most marks: sufficient does not mean yes. Suppose the question is whether x is an even number, and a statement tells you x is 7. Many students reject it because the answer comes out as no. But the statement answered the question with certainty, so it is sufficient. Train this one idea and your data sufficiency accuracy jumps immediately.

Data interpretation: the marks are in calculation speed

Almost nothing in the chart questions is conceptually hard. It is percentages, ratios, averages and growth rates — ideas you finished in school. What separates a student who attempts eight questions from one who attempts twenty is pure calculation speed, and that is built by a small daily drill, not by more theory.

Give it fifteen to twenty minutes a day. Practise percentage-to-fraction conversions until they are reflex: one-eighth is 12.5 percent, one-twelfth is about 8.3 percent, and so on. Practise two-digit multiplication on paper. Most importantly, practise approximation. When the four options are far apart, an estimate picks the right one in a third of the time an exact calculation takes. Look at the options before you calculate — they tell you how precise you need to be.

Two reading habits help too. Read the question first, then go to the chart and pull out only the numbers it needs, instead of studying the whole chart upfront. And always check the units and the fine print under the chart — figures in thousands, a year missing, one bar drawn on a different scale. Setters hide a question or two in exactly those corners.

How to attempt the section on exam day

MAT has no sectional time limit, so you decide how long this section gets. Around 25 minutes of the 120 is a sensible budget. Make two passes. In the first pass, take the data sufficiency questions and the single-chart questions — they are the fastest marks here. Skip the heavy caselets and the mixed-chart sets. In the second pass, come back to the skipped ones with whatever time remains.

Respect the negative marking. A quarter mark per wrong answer means blind guessing slowly bleeds your score. If a data sufficiency option is a coin toss after your check, leave it. Twenty accurate attempts beat twenty-eight hopeful ones in this section, every time.

Your drill plan from now to December

The December 2026 session gives you two chances at this: the Paper-Based Test on Sunday 20 December and the Computer-Based Test on Sunday 27 December. Registration closes around 14 December for the PBT and around 21 December for the CBT, and the listed fee is Rs 2,300 for one mode or Rs 4,000 for both — our full guide to the MAT December 2026 dates, registration and fees has every step. From late October that leaves roughly eight weeks to the PBT and nine to the CBT. Plenty, if the work is daily.

Weeks 1 to 3: the daily mental maths drill, plus one chart set every alternate day. Learn the data sufficiency option logic cold. Weeks 4 to 6: move to timed sets — ten questions in twelve minutes — and write a full mock every weekend. Weeks 7 and 8: mocks and review only. Every wrong answer goes into a notebook with one line on why: wrong reading, wrong calculation, or wrong decision to attempt. Those three labels tell you exactly what to fix next week.

If you want this section coached

Everything above works as self-study. If you want it structured, our MAT online coaching runs live classes on Monday, Tuesday, Thursday and Friday evenings, joinable from anywhere in India, and every class is recorded. The four-month batch includes e-books, the full mock series and mentorship, so the timed section drills are built into the schedule rather than left to willpower. Our student results are here — a MAT high of 771 out of 800, with 9 of 10 students crossing 600. Either way, start the daily drill this week. In this section, the student who calculated every day wins.