RC Primary Purpose.
Match the verb, not the content.
Where students confuse what the passage says with what the passage does. The five sub-patterns. The verb-matching method that eliminates three choices in ten seconds.
Also known as: Why the passage was written.
RC Primary Purpose tests whether you can identify what an LSAT passage does, not what it says. The right answer starts with a verb that matches the author's action: describe, explain, argue, critique, compare. The top miss pattern is choosing an "argue" or "defend" answer on a passage that is explanatory. The verb check eliminates most wrong answers before you read the rest of the choice. Sub-patterns: Describe/inform, Advocate/argue, Critique/evaluate, Compare/contrast.
The pattern
A Primary Purpose question asks what the passage does, not what the passage says. The right answer starts with a verb that captures the author's action: describe, argue, critique, compare, propose, evaluate. The wrong answers either start with the wrong verb (the most common miss) or scope too broadly or too narrowly. The test is not content recall. It is functional identification.
The stem usually reads as one of these:
- Which one of the following most accurately states the primary purpose of the passage?
- The primary purpose of the passage is to...
- Which one of the following best describes what the passage as a whole does?
- The passage is primarily concerned with doing which one of the following?
Sub-patterns
The author conveys information without arguing for a position. The passage presents a situation, a process, or a set of facts. The right answer starts with "describe" or "explain." Distractors often substitute "argue" or "defend."
The author takes a position and supports it with evidence or reasoning. The right answer starts with "argue" or "defend." Distractors often substitute "describe" or "evaluate," underselling the author's assertiveness.
The author examines a position or practice and identifies its weaknesses or merits. The right answer starts with "critique," "assess," or "evaluate." Distractors often frame the passage as pure description when the author takes a clear stance on what is being evaluated.
The author sets two or more positions or approaches side by side. The right answer captures the act of comparison. Distractors often credit only one side of the comparison, missing the structural device.
Three trap patterns.
The first slip
The plateau on Primary Purpose comes from answering a content question instead of a function question. Students who can state what the passage is about often cannot state what the passage does. The distinction is the verb: "about" names a subject; "does" names an action. The LSAT tests the action.
The compounding slip
The secondary miss pattern is scope error. A passage that spends one paragraph defending a decision does not have "defending that decision" as its primary purpose. Students who read paragraph by paragraph without tracking the whole structure assign the most detailed paragraph the role of primary purpose. The fix is reading for structure before reading for content.
Why it sticks
The verb in the answer choice is the test. A passage can describe a practice without arguing for it. A passage can explain a decision without defending it. Name the verb before you read the rest of the choice.
One RC Primary Purpose question. Pick before you scroll.
Pick your answer before scrolling. Commit to a choice, optionally record your confidence, then reveal the explanation.
Passage · 5 paragraphstoggle
I bought Pinaka Books on Pennsylvania Avenue because I believed the store had a customer base that other owners had not learned to read. The weekday crowd runs federal employees walking over from nearby agencies. They buy at lunch. They come back the following week. The weekend crowd skews toward tourists who buy one fiction title and leave. I knew from the start that these two crowds have different price tolerances and different return rates, and I wanted to find out what that difference was worth operationally.
The most concrete thing I have done in five years is run a pricing experiment across three sections. Fiction, which sells primarily to the weekend crowd, I priced at full retail. History, which draws a mix of weekday regulars and returning visitors, I discounted 10 percent for subscribers. The legal-reference section, which serves a narrow professional audience that shops by necessity rather than preference, I priced dynamically, adjusting by week based on title velocity. The results were not what the textbook pricing literature would predict. The history discount produced a lift of 8 percent in unit sales, but nearly all of it came from customers who were already subscribers. New subscriber acquisition was negligible. The legal-reference section held steady regardless of price movement. Fiction was flat at full retail. My conclusion from this data is that pricing strategy matters less than the character of each section's customer base.
I have not added a cafe section, though several investors have suggested it. I know what happened to the two comparable stores on this corridor that installed cafe sections three years ago: foot traffic rose, and book sales did not. A customer who comes for coffee is not, on average, a customer who then browses legal reference. I do not need the cafe-section template to generate weekday traffic. I already have a weekday crowd. What I need is to understand that crowd well enough to price correctly.
What I believe makes Pinaka Books different from most independent bookstores in the District is not the inventory mix or the location, though both are favorable. It is the discipline of treating each section as a separate retail problem. The customers who buy history on a Tuesday at noon are not the customers who buy fiction on a Saturday afternoon, and no single pricing rule serves both well. I have spent five years collecting data on this. The pricing experiment confirmed what I suspected. The next step is to extend the same section-by-section logic to inventory depth and reorder timing.
I am writing this memo to give you a clear picture of how I think about the store. This is not a pitch. You can see the numbers in the attached document. What I want to convey here is the operating logic behind the numbers, because I think the logic is what you are actually evaluating.
Which one of the following most accurately states the primary purpose of the passage?
Pick one of the five choices on the left. The explanation reveals after you commit.
The fix
- 01
Circle the verb in every Primary Purpose answer.
Before reading the rest of each answer choice, circle the opening verb. Then ask whether the passage performs that action as its primary move. "Argue," "critique," "defend," and "propose" are all disqualified by a passage the author calls explanatory. The verb check takes five seconds and eliminates most wrong answers.
- 02
Read the last paragraph before the middle.
Authors often state their purpose in the final paragraph or the opening sentence. On Primary Purpose questions, read first and last before reading in sequence. The middle paragraphs carry evidence; the frame carries intent. The frame is what the question asks about.
- 03
Drill sub-pattern by verb family.
Sort 20 Primary Purpose questions into verb families: describe/explain, argue/defend, critique/evaluate, compare/contrast. Do all the describe/explain items first. The distinction between "the passage describes X" and "the passage argues for X" becomes visible faster when the contrasts are immediate.
The drill set adapts to your weakness.
Every Primary Purpose question in Pinaka is tagged by sub-pattern and by the verb family of the credited answer. After your first mock, your skill map shows where the verb mismatch is happening: whether you are consistently choosing "argue" answers on "describe" passages, or collapsing scope to a single paragraph. The drills serve your pattern, not the average pattern.
Each question explanation walks the verb-check step explicitly. The five sections are: the correct verb, why each distractor verb fails, the scope check, the faster method, and the full approach. The same depth on every item, at every difficulty level.
This is sample data. Your numbers arrive after one full mock. The chart shows your accuracy on each of the 21 LSAT subskills, with an evidence count on each. The lowest peak is where Pinaka starts your drilling.
Skills closely related to this one.
See how this skill fits in the full LSAT skill taxonomy.
RC Primary Purpose questions, answered.
How is Primary Purpose different from Main Point?
Main Point asks what the passage argues, which is a claim. Primary Purpose asks what the passage does, which is an action. The right answer for Primary Purpose starts with a verb. The right answer for Main Point states a proposition. The same passage can generate both question types. On Main Point you complete the sentence "The author claims that..."; on Primary Purpose you complete the sentence "The author does this by...".
Can a passage have more than one purpose?
A passage can serve multiple functions, but one will be primary. The question asks for the primary purpose. A passage that describes a practice and then evaluates it has evaluation as the primary purpose because the description is subordinate to it. Look at what the passage builds toward, not just what it contains.
Do I need to read the whole passage to answer Primary Purpose?
Yes, but you can form a strong prediction after the first and last paragraphs. The full read confirms the prediction and lets you eliminate distractors that misrepresent scope. A prediction formed on partial reading is a hypothesis, not an answer. Verify it.
Recap
RC Primary Purpose. asks what the passage does, not what it says. Action over content.
The verb check. the right answer starts with a verb that matches the author action. Describe, explain, argue, critique, compare.
Four sub-patterns. describe and inform, advocate and argue, critique and evaluate, compare and contrast.
The trap. choosing "argue" or "defend" on a passage that is explanatory. Match the verb before evaluating the rest.
One mock.Your Primary Purpose verb-mismatch pattern, named.
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