What are the question types inside a CSAT comprehension passage — fact, inference, assumption, opinion?

The five question families

Every CSAT RC question, regardless of how it is phrased, belongs to one of five families. Recognising the family in the question stem (before you re-read the passage) is the most valuable comprehension skill.

1. Fact-based / direct

• Stem signals: "According to the passage…", "The passage states that…", "Which of the following is mentioned…"
• What it tests: Literal retrieval from the passage.
• Rule: The answer must be explicitly present in the text. If you cannot underline the supporting sentence, your answer is wrong. Reject any option that paraphrases beyond the literal claim.
• Frequency: ~15–20% of RC questions in recent papers.

2. Inference

• Stem signals: "It can be inferred that…", "Which of the following can be deduced…", "The passage suggests…", "Most likely…"
• What it tests: Whether option C is logically supported by the passage statement B (Statement → Inference).
• Rule: The inference must be necessarily true given the passage, not merely consistent with it. Use the True-False test — if the option adds new information not in the passage, eliminate it.
• Frequency: 70–80% of RC questions in 2022–2025 papers. The single most-tested family.

3. Assumption

• Stem signals: "Which of the following is an assumption underlying…", "The author assumes that…", "What must be true for the author's argument to hold?"
• What it tests: Whether the passage's conclusion depends on the option being true (Assumption → Statement).
• Rule: Use the negation test — if you negate the option and the passage's conclusion collapses, it is an assumption. If negation has no effect, it is not.
• Frequency: ~5–10% of recent RC.

4. Author's view / opinion

• Stem signals: "The author's attitude is…", "The author is most likely to agree with…", "What is the author's stance…"
• What it tests: Distinguishing the author's voice from quoted critics or examples within the passage.
• Rule: Remove your own opinion. If the author quotes a counter-view, that view is not the author's view. Look for evaluative language — "unfortunately", "clearly", "however" — that signals the author's own position.
• Frequency: ~5–10%.

5. Main idea / crux / title

• Stem signals: "The central theme is…", "The most suitable title is…", "The passage is primarily concerned with…"
• What it tests: The single sentence that the entire passage exists to support.
• Rule: The correct option must be broad enough to cover every paragraph but narrow enough not to import outside content. Reject options that capture only one paragraph or that add new framing.
• Frequency: Usually 1 per passage; ~5% of RC overall.

The two-pass reading method

For a 300–400 word CSAT passage with 2–3 questions, the optimum sequence:

1. Read the question stems first (15–20 seconds) — identify which families they belong to.
2. Skim the passage once for structure (60–90 seconds) — note where each paragraph's main claim sits.
3. Answer fact and main-idea questions first — these have direct support.
4. For inference and assumption questions, eliminate by family rule, not by feel.
5. Total target: under 3 minutes per passage. If a question is taking more than 90 seconds, mark and move.

Common traps by family

• Fact trap: An option uses the same keywords as the passage but inverts a small modifier ("all" vs "some", "never" vs "rarely"). Always read modifiers.
• Inference trap: An option is true in the real world but not supported by the passage. CSAT punishes outside knowledge.
• Assumption trap: A statement that the passage says is presented as an "assumption". Assumptions are unstated by definition.
• Author's view trap: A view the author rebuts is presented as the author's view.
• Main idea trap: Too narrow (one paragraph) or too broad (importing outside theme).

What changed after 2022

CSAT 2022 reintroduced Level-3 inferential passages that had been dormant since 2018. Since then, every paper has at least 8–10 questions that require two passes of the passage and active elimination. Direct fact-based questions have shrunk to ~15% of RC. If you trained on 2017–2020 RC alone, you will under-prepare.

Mentor's takeaway

Classify before you answer. The question stem tells you exactly which elimination rule to deploy. Aspirants who skip this step lose 4–6 RC marks per paper to entirely avoidable traps.

Sources

• Mrunal — Inference vs Assumption framework
• PrepAiro — 15 RC shortcuts
• PWOnlyIAS — RC strategy & PYQ tips
• IAS Gyan — RC tricks 2025