Taxmann Cracker - Quantitative Aptitude (Maths, LR & Stats) Book For CA Foundation By Kailash Thakur.

Quantitative Aptitude – CRACKER for CA Foundation | Paper 3 is a fully exam-engineered problem-solving manual that transforms ICAI's Quantitative Aptitude paper into a pattern-driven, marks-optimisation exercise. Rather than functioning as a conventional theory textbook, this publication is editorially designed as a question-first execution system, built entirely on ICAI's historical testing behaviour across Business Mathematics, Logical Reasoning, and Statistics. This Edition (February 2026) captures the paper exactly as it is examined today, incorporating complete solved coverage of past CA Foundation examinations up to January 2026, selected RTPs and MTPs, and additional exam-relevant questions in high-weightage chapters. The book integrates chapter-wise marks distribution tables and ICAI Study Material mapping, allowing students to identify scoring areas, prioritise preparation time, and practise questions with complete syllabus and examiner alignment.

The Present Publication is the 16^th Edition, authored by Kailash Thakur, with the following noteworthy features:

• [Exhaustive Solved Past Examination Questions] Complete, chapter-wise solved coverage of ICAI questions, including September 2025 and January 2026 papers, with step-by-step, exam-oriented solutions
• [Chapter-wise Marks Distribution Analytics] Dedicated tables analysing marks allocation across multiple exam cycles (2023–2026), enabling data-driven prioritisation of high-scoring chapters
• [ICAI Study Material Chapter Mapping] Precise one-to-one mapping of every CRACKER chapter with corresponding ICAI Study Material chapters, ensuring total syllabus compliance
• [Additional Exam-focused Questions] Selected supplementary problems in chapters such as Mathematics of Finance, Probability, Statistics, and Reasoning, reflecting ICAI's evolving difficulty and coverage
• [RTP & MTP Integration] Carefully curated questions from ICAI Revision Test Papers and Mock Test Papers, integrated chapter-wise rather than appended randomly
• [Calculator & Shortcut Techniques] Embedded calculation shortcuts and logical techniques designed to reduce time per question under real exam conditions

The book offers complete syllabus coverage, organised strictly as per ICAI's Quantitative Aptitude framework:

• Business Mathematics
• Ratio & Proportion
• Indices and Logarithms
• Linear & Quadratic Equations
• Inequalities
• Mathematics of Finance – Simple Interest, Compound Interest & Annuities
• Permutations & Combinations
• Sequences & Series
• Sets, Functions & Relations
• Calculus (Limits & Continuity, Differential Calculus, Integration)
• Logical Reasoning
• Number Series
• Coding & Decoding
• Direction Tests
• Seating Arrangement
• Blood Relations
• Statistics
• Description of Data
• Measures of Central Tendency
• Measures of Dispersion
• Probability
• Probability (Theoretical Distributions)
• Sampling Theory of Estimation
• Correlation & Regression Analysis
• Index Numbers
• Additionally, the book includes fully solved previous examination papers (September 2025 & January 2026) as consolidated mock-exam practice sets.

The structure of the book is as follows:

• Chapter-wise, Exam-aligned Organisation strictly follows the ICAI syllabus order
• Each chapter is built around ICAI-asked Questions First, followed by selected RTP/MTP and additional practice questions
• Solutions are Calculation-Efficient, logically sequenced, and framed in the manner ICAI evaluates answers
• Marks-trend Tables placed upfront to guide preparation strategy
• Clear separation between Concept Application, Exam-level Problems, and Full Paper Solutions