Odd Sentence Out Notes for CAT: Concepts, Formulas, Worked Examples & Practice

    Odd Sentence Out notes for CAT: 50 study cards covering concepts, formulas, shortcuts and exam traps, plus solved practice questions.

    Chapter Roadmap: Mastering Odd Sentence Out

    Chapter Roadmap

    01

    Science, Environment, & Biotech

    Factual mechanisms, cause-and-effect, empirical evidence.

    02

    Society, Education, & Work

    Institutional structures, social dynamics, systemic critiques.

    03

    Culture, History, & Language

    Chronological evolution, cultural shifts, linguistic nuances.

    04

    Ethics, Psychology, & Behaviour

    Moral dilemmas, cognitive biases, behavioural patterns.

    End Goal: Develop a universal framework to identify the central theme and eliminate the outlier in under sixty seconds.

    The Core of Science and Environment Passages

    Passages in this domain are grounded in the physical, biological, or ecological world. They are rarely subjective; they are highly structured, objective, and follow a strict logical progression.

    The Mechanism Anchor Explaining how a physical or biological process works (e.g., photosynthesis, chemical synthesis, neural pathways).
    The Impact Anchor Arguing the consequences, benefits, or risks of a scientific phenomenon (e.g., climate change mitigation, biotech ethics).
    First-Timer Intuition: Do not get intimidated by technical vocabulary. The jargon is just a label. Look for the action or the argument happening behind the jargon. The odd sentence is simply the one that stops contributing to that specific action or argument.

    Decoding Scientific Passages: The Claim-Evidence Flow

    Scientific texts typically follow a rigid structural flow designed to build a logical case.

    • Introduction / Claim: Introduces the phenomenon, discovery, or hypothesis.
    • Mechanism / Context: Explains how it works or the background conditions required.
    • Evidence / Observation: Provides the data, study results, or observable facts.
    • Implication / Conclusion: Discusses what this means for the broader field or future research.
    How the Odd Sentence Intrudes:
    • The Scope Shift: Introduces a parallel scientific field not being compared.
    • The Micro-Detail: Zooms in on an irrelevant variable that derails the main argument.
    • The Premature Conclusion: Jumps to implication before mechanism is explained.

    Decoding Environmental Passages: The Problem-Solution Arc

    Environmental texts are inherently concerned with systems, disruptions, and human impact. They usually follow a Cause-Effect or Problem-Solution structure.

    The Threat / Problem
    Identifies the ecological issue (e.g., pollution, habitat loss).
    The Cause / Driver
    Explains human activities or natural processes driving the issue.
    The Consequence / Impact
    Details effects on ecosystems, climate, or human health.
    The Mitigation / Policy
    Discusses regulatory frameworks, technological fixes, or conservation.
    How the Odd Sentence Intrudes:
    • Tangential Benefit: Highlights an unrelated economic advantage.
    • Historical Detour: Mentions a past event that doesn't inform the current argument.
    • False Equivalence: Compares to a different ecological problem without logic.

    Odd Sentence Out: Solved Questions with Step-by-Step Explanations (2 Problems)

    Question 1 · Verbal Ability and Reading Comprehension NAT
    Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.
    1. The concept of "moral luck," introduced by Thomas Nagel, challenges the intuition that moral responsibility should depend only on factors within an agent's control.
    2. For instance, two drivers may behave identically recklessly, yet only one strikes a pedestrian who happens to cross the street at that moment, creating vastly different moral assessments.
    3. This asymmetry suggests that our ethical judgments are far more contingent on external circumstances than most philosophical frameworks acknowledge.
    4. Empirical studies in developmental psychology confirm that children as young as four begin to distinguish between intentional harm and accidental outcomes when evaluating peer behavior.
    5. Consequently, any comprehensive theory of moral responsibility must account for the uncomfortable reality that chance plays an irreducible role in determining blame.
    Correct Answer:

    4

    Step-by-Step Solution

    Key idea: This is an empirical_vs_moral trap question, recognisable because four sentences construct a tight philosophical argument about moral luck and its implications for ethical theory, while one sentence pivots to citing empirical developmental psychology data that shifts the domain from normative philosophy to descriptive science.

    Step 1: Identify the core theme. The paragraph builds a philosophical argument about moral luck. Sentence 1 introduces Nagel's concept. Sentence 2 provides the classic thought experiment (two reckless drivers). Sentence 3 draws the philosophical implication (contingency of ethical judgment). Sentence 5 concludes with the theoretical demand (any theory must account for chance).

    Step 2: Analyze the outlier. Sentence 4 cites empirical developmental psychology studies about children's moral reasoning. While topically adjacent to "morality," it shifts the paragraph from a normative philosophical argument to a descriptive scientific finding. The paragraph argues about what moral theory should accommodate; sentence 4 reports what children actually do, which is a fundamentally different mode of discourse.

    Step 3: Verify the chain. 1 (Philosophical concept) → 2 (Thought experiment) → 3 (Implication) → 5 (Theoretical conclusion). Sentence 4 breaks the normative chain with empirical data.

    Answer: 4

    Question 2 · Verbal Ability and Reading Comprehension MCQ

    According to the Final Exam Checklist, under what condition can a scientifically accurate sentence still be correctly identified as the odd one out?

    1. A.

      If it breaks the specific argumentative thread of the paragraph

    2. B.

      If it is the longest sentence in the paragraph

    3. C.

      If it uses passive voice

    4. D.

      If it contains a statistical figure

    Correct Answer:

    A

    Step-by-Step Solution

    Key idea: This tests a specific, counterintuitive rule from the final exam checklist.

    Step 1: Recall the checklist's final point regarding scientifically true statements.

    Step 2: Understand that coherence is about the argumentative thread, not just factual accuracy.

    Step 3: Conclude that a scientifically true sentence can still be the odd one out if it breaks the specific moral or logical argument being built.

    Answer: A

    More notes in this unit

    chapter
    Odd Sentence Out Notes for CAT: Concepts, Formulas, Worked Examples & Practice

    Odd Sentence Out notes for CAT: 50 study cards covering concepts, formulas, shortcuts and exam traps, plus solved practice questions.

    A question from this chapter

    Question 1
    Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.
    1. The concept of "moral luck," introduced by Thomas Nagel, challenges the intuition that moral responsibility should depend only on factors within an agent's control.
    2. For instance, two drivers may behave identically recklessly, yet only one strikes a pedestrian who happens to cross the street at that moment, creating vastly different moral assessments.
    3. This asymmetry suggests that our ethical judgments are far more contingent on external circumstances than most philosophical frameworks acknowledge.
    4. Empirical studies in developmental psychology confirm that children as young as four begin to distinguish between intentional harm and accidental outcomes when evaluating peer behavior.
    5. Consequently, any comprehensive theory of moral responsibility must account for the uncomfortable reality that chance plays an irreducible role in determining blame.
    Question 2

    According to the Final Exam Checklist, under what condition can a scientifically accurate sentence still be correctly identified as the odd one out?

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