GMAT Multi-Source Reasoning: how to read the tabs and answer the set

Updated 25 September 2026 · 7 min read

Multi-Source Reasoning (MSR) is the longest-looking question on the GMAT Focus. Information is spread across two or three tabs, such as an email, a table and a memo, and a set of questions draws on them. The first question of a set is always slow, because you are reading. The payoff is that later questions on the same sources can be quick, as long as you read the tabs the right way the first time.

This guide explains the format, GMAC's own advice on reading the tabs, a note-taking method, and a full original MSR set with solutions.

What Multi-Source Reasoning looks like

MSR is one of the five question types in the GMAT Focus Data Insights section (20 questions in 45 minutes, with an on-screen calculator). GMAC describes it as examining data from multiple sources, including text passages, tables and graphics, presented under different tabs. You click between tabs; only one is visible at a time.

Each set of sources comes with several questions. Some are ordinary multiple choice with five options. Others give you several statements to judge, each with two opposing options such as Yes/No or True/False. Prep companies report that on the multi-statement questions you need every statement right to earn credit.

GMAC's advice: skim first, read on demand

GMAC's own prep advice is not to read everything line by line when you first see an MSR set, unless you are looking for something specific. Instead, understand what each tab is about by reading its title and first sentence, and scan each diagram, table or graph to know which variables it presents.

That matches how the questions work. Most questions need one or two specific facts, often one from each of two tabs. If you know where each kind of fact lives, you can find it in seconds. If you tried to memorise everything, you would still have to look back.

A note-taking method for the tabs

Spend 60–90 seconds on the first pass and write one line per tab:

• What kind of source is it? Rules, data, an exception, an opinion.
• What are its key variables? Column names, categories, units.
• Does it modify another tab? Emails and memos often add an exception or update a number that changes how the table must be read.

Example notes: "T1: venue rules (capacity, travel, budget). T2: venue table. T3: CFO email: 130 people, coach cost if more than 60 min." Those three lines are enough to route every question to the right tab.

Worked example: choosing an offsite venue

Read the three tabs below as you would on the exam, then try the two questions.

Tab 1: Policy (from the events director)

Our annual offsite must be held at a venue that meets all three requirements: (1) it can hold at least 120 people; (2) travel time from head office is 90 minutes or less; (3) the total cost, including catering, is no more than $30,000. Where a venue does not include catering, we use our standard caterer at $45 per attendee.

Tab 2: Venue shortlist

Tab 3: Email from the CFO

Please plan for 130 attendees. Also note: any venue more than 60 minutes from head office needs a chartered coach, which costs $2,000. The coach counts toward the event's total cost.

Question 1 (multiple choice)

How many venues on the shortlist meet all of the requirements in the policy?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

Solution. Catering for 130 attendees at $45 each costs $5,850. Now apply every rule from all three tabs to each venue:

Two venues qualify. The answer is (B).

The trap is (C). Without Tab 3's coach cost, Summit Centre comes to $28,350 and seems to qualify. This is the classic MSR design: one tab adds a condition that changes how another tab must be read. Mill House is also worth a second look: at exactly 60 minutes, it is not "more than 60", so no coach is needed.

Question 2 (Yes/No statements)

For each statement, select Yes if it is supported by the information provided, or No otherwise.

1. If the travel limit in the policy were raised to 100 minutes, Lakeside Lodge would meet all of the requirements.
2. If attendance were 110 people, Orchard Barn would meet all of the requirements.
3. Of the venues that meet all of the requirements, Mill House has the lower total cost.

Solution.

1. Yes. At 95 minutes, Lakeside now meets the travel rule, but it is more than 60 minutes away, so it needs the coach: 18,000 + 5,850 + 2,000 = $25,850, within budget. Capacity 200 is fine.
2. No. The policy requires a venue that holds at least 120 people, regardless of how many attend. Orchard Barn's capacity is 110. The trap is to compare capacity with attendance rather than with the policy's fixed minimum.
3. Yes. Mill House costs $27,500; Harbor Hall costs $27,850.

Notice how little rereading Question 2 needed once the table in Question 1 existed. That is the MSR payoff: organise the sources once and every later question gets faster.

The traps MSR is built around

Timing an MSR set

With about 2 minutes 15 seconds per Data Insights question on average, an MSR set's time budget is shared across its questions. A sensible plan is to accept that the first question takes 3–4 minutes (including the read and your notes) and aim for 1½–2 minutes on each later question in the set.

If a set is going badly, it is often better to make reasoned choices on the remaining questions and move on than to sink ten minutes into it. Data Insights also contains faster formats, such as Graphics Interpretation and Data Sufficiency, where that time is better spent.

How to practise Multi-Source Reasoning

• Practise the first pass separately. Time yourself writing tab notes for 60–90 seconds, then check whether the notes let you route each question to the right tab.
• Build a combined view when rules meet data. In the example, a small table that applied every rule to every venue answered both questions. When a set pairs rules with a data table, this is usually worth the time.
• Try a full set. Our Multi-Source Reasoning practice set has three sources (a table, a memo and an email) and three questions with explanations.
• Train the reading side. MSR text tabs are close to Critical Reasoning and Reading Comprehension in the care they demand.

See also the guides to Two-Part Analysis and Table Analysis, and the Data Insights overview.