CSAT: Comprehension, Reasoning and Numeracy

Patterns, codes and mental ability

School arithmetic and working reading fluency, with rusty Class X mathematics; first focused CSAT preparation. Learners needing basic literacy or foundational numeracy remediation need a separate diagnostic budget.

Includes

• Assigned explanatory sections and selected worked examples
• Available mapped CSAT questions with untimed then timed attempts
• Mistake analysis and one initial recall review

Separate time needed

• Full-length timed papers
• Later spaced revision
• All optional textbook exercises
• Advanced mathematics beyond Class X or competition-specific high-difficulty extensions
• Optional supplementary exam-book exercises beyond available mapped practice

Editorial planning estimate; not learner timing data

• Alternating number series: worked example ↗

  Question 9 and Explanation before Discussion: separate constant odd-position terms from the even-position progression; omit comments

• Analogy: introduction ↗

  Definition of analogy and Example 5 only: apply the same numerical transformation to the second pair; other examples excluded

• Classification: worked examples ↗

  Directions and Question 3 with explanation only: distinguish the bird that flies from the three flightless birds

• Coding and Decoding Questions and Answers ↗

  PDF page 1, Question 2 and solution table: forward/reverse alphabet positions; other questions on this page optional

• Coding and Decoding Questions and Answers ↗

  PDF page 9, initial letter-symbol table and Questions 25 and 27 only; Question 26 uses a different table and is excluded

• Coding-Decoding: reverse order ↗

  Letter Shift Coding, Pattern 4: Reverse Order and Pattern 5: Reverse + Shift only; exclude Pattern 3 and Solved Examples 5–6

• Mathematical Operations ↗

  Example 1 only: supplied operator mapping, rewritten expression and final value; exclude the prose asserting division must always precede multiplication

• Order of Operations: BODMAS ↗

  Order of Operations through BODMAS summary and first three Examples: equal-precedence operations evaluated left to right

• Series Completion: repeated letter blocks ↗

  Section 5, Directions and Questions 1–2 with explanations: fill gaps consistently with a repeating letter block

• Sequences ↗

  Many Rules: a finite prefix alone does not logically force a unique continuation

• Sequences ↗

  Arithmetic Sequences definition and worked rule; Many Rules warning about finite-prefix ambiguity

• Sequences ↗

  Geometric Sequences: multiplying by a constant and the powers-of-2 example; Many Rules warning

• Powerful Finale ↗

  Problem and Student Solutions: repeating four-term unit-digit pattern and locating a term by its cycle position

• Substitution Cipher ↗

  Problem, Getting Started and worked letter-pair deductions in Student Solutions; frequency provides a hypothesis checked against words, not a guaranteed ranking

• Excel in Reasoning, ISBN 9789355329455 ↗

  Chapters 1–3: Series, Analogy, Classification

  Book required · Supplementary
• Excel in Reasoning, ISBN 9789355329455 ↗

  Chapters 4, 10, 11 and 13: Coding-Decoding, Alphabet Test, Word Formation, Mathematical Operators

  Book required · Supplementary
• NIOS Mathematics, lesson 7: Arithmetic Progressions ↗

  Sections 7.1–7.4

• Concise CSAT—General Studies Paper II, seventh edition, ISBN 9789355327161 ↗

  Chapter 5: General Mental Ability

  Book required · Supplementary