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Chapter 3 of 10
Study Plan

Classification or Odd one outStudy Plan

BITSAT · Logical Reasoning

Step-by-step Classification or Odd one out study plan for BITSAT Logical Reasoning 2026 — structured month-wise approach to mastering this chapter.

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How to Study Classification or Odd one out

A structured approach to studying Classification or Odd one out for BITSAT Logical Reasoning.

Study Plan for Classification or Odd one out

1

Day 1–2: Learn the Theory

Study the chapter thoroughly. Note down definitions, formulas, and key concepts.

2

Day 3: Practice Problems

Solve practice questions and previous year BITSAT problems. Focus on MCQs and numerical problems.

3

Day 4: Revise & Test

Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding.

What to Focus On

  • Always look for the property shared by the maximum number of items; the odd one lacks that property.
  • A valid grouping rule must apply to ALL members of the majority group without exception.
  • Do not settle for superficial similarity; look for the deepest, most specific common attribute.

  • Use your PCM subject knowledge — elements vs. compounds, laws of physics, biological taxonomy — as shortcuts.
  • Be careful with near-synonyms: 'river' and 'canal' are both waterways, but one is natural and the other is man-made.
  • Country–continent, state–capital, element–symbol associations must be memorised for rapid recall.

  • Check divisibility rules quickly: sum of digits for 3 and 9, last digit for 2 and 5, last two digits for 4.
  • Memorise perfect squares up to 30² = 900 and perfect cubes up to 10³ = 1000.
  • Fibonacci sequence: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 ... — know it up to 20 terms.

Common Mistakes to Avoid

The first valid relationship I spot must be the correct basis for classification.

In number-based odd-one-out, the most obvious arithmetic property (even/odd) is always the intended basis.

In alphabet/letter-group questions, the sequence direction (forward vs. reverse) doesn't matter — only which letters appear.

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Frequently Asked Questions

What topics are covered in Classification or Odd one out for BITSAT?
Classification or Odd one out is an important chapter in BITSAT Logical Reasoning. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Conceptual Foundation: What Is Classification?, Type 1: Number-Based Classification, Type 2: Word / Semantic Classification, Type 3: Letter-Group / Alphabet Classification.
How important is Classification or Odd one out for BITSAT?
Classification or Odd one out is a frequently tested chapter in BITSAT Logical Reasoning. Questions from this chapter appear regularly in previous year papers.
How to prepare Classification or Odd one out for BITSAT?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.

For BITSAT aspirants

Get the full Classification or Odd one out chapter — for free.

Practice questions, revision notes, formula sheet and AI doubt-solver for BITSAT Logical Reasoning.