CA Foundation Quantitative Aptitude Chapter Wise Weightage — 2026 (Paper 3)

Official ICAI section-wise weightage for Paper 3: Quantitative Aptitude — 100 marks, 3 hours. Use it to put your revision hours where they earn the most marks in the current New Scheme attempts (next expected January 2027, subject to ICAI’s notification).

Source: ICAI Board of Studies official weightage (New Scheme, applicable from May 2024) — valid for the current New Scheme attempts (next expected January 2027, subject to ICAI’s notification).

Part A

Business Mathematics

40 marks

Part B

Logical Reasoning

20 marks

Part C

Statistics

40 marks

Complete Chapter-Wise Weightage Table

Section	Chapters / Topics	Weightage	Priority
Part A: Business Mathematics
Section I Ratio, Equations & Inequalities	Ratio and proportion Time and work-related problems Laws of Indices Exponents and Logarithms Linear equations Simultaneous linear equations (up to 3 variables) Quadratic and Cubic equations Linear Inequalities in one and two variables	20%–30% ≈ 8–12 marks	LOW
Section II Mathematics of Finance	Simple Interest Compound Interest Nominal and Effective Rate of Interest Present Value and Net Present Value Future Value Perpetuity and Annuities Sinking Funds Calculating EMI Nominal and Effective rate of Return Compound Annual Growth Rate (CAGR)	30%–40% ≈ 12–16 marks	LOW
Section III Sequences, Sets & Calculus	Permutations and Combinations Sequence and Series Arithmetic and Geometric progression Relationship between AM and GM Sets, Relations, and Functions Limits and Continuity Basic Differential calculus Basic Integral calculus Business and Economics applications	30%–50% ≈ 12–20 marks	MEDIUM
Part B: Logical Reasoning
Section IV Logical Reasoning	Number series, coding and decoding Odd man out Direction Tests Seating Arrangements Blood Relations	80%–100% ≈ 16–20 marks	MEDIUM
Part C: Statistics
Section V Data Representation & Sampling	Statistical Representation of Data Diagrammatic representation Frequency distribution Histogram, Frequency Polygon, Ogive, Pie-chart Sampling theory and principles Types of sampling Sampling and non-sampling errors Measures of Central Tendency (Mean, Median, Mode) Measures of Dispersion Standard Deviation and Coefficient of Variation	45%–50% ≈ 18–20 marks	MEDIUM
Section VI Probability	Independent and dependent events Mutually exclusive events Total and Compound Probability Bayes' theorem Random variables Binomial Distribution Poisson distribution Normal Distribution	25%–30% ≈ 10–12 marks	LOW
Section VII Correlation & Regression	Scatter diagram Karl Pearson's Coefficient of Correlation Rank Correlation Regression lines and equations Regression coefficients	10%–15% ≈ 4–6 marks	LOW
Section VIII Index Numbers	Uses of Index Numbers Problems in construction Methods of construction BSE SENSEX and NSE NIFTY	10%–15% ≈ 4–6 marks	LOW

Weightage shown is within each part; each part carries the marks noted above.

How to Use This Weightage

Lead with Data Representation & Sampling (45–50% of Part C: Statistics). It carries the most marks in the paper, so it should get your first and deepest revision pass — followed by Logical Reasoning (80–100% of Part B: Logical Reasoning). Together the top two areas are roughly 37 of the 100 marks.

Practise, don't just read. For the heavy sections, work through past papers, MTPs and RTPs rather than re-reading notes — ICAI reuses question patterns closely. You'll find 14 Quantitative Aptitude papers with suggested answers on this site.

Don't abandon the low-weight sections. They are usually smaller in scope and often the easiest, most predictable marks — a quick, reliable buffer toward the 40-mark pass line. Always confirm the current attempt's amendments against the latest ICAI RTP.

Frequently Asked Questions

What is the chapter-wise weightage for CA Foundation Quantitative Aptitude?

Per ICAI's official Board of Studies weightage (New Scheme), Quantitative Aptitude (Paper 3, 100 marks) is split as: Ratio, Equations & Inequalities 20–30% of Part A: Business Mathematics, Mathematics of Finance 30–40% of Part A: Business Mathematics, Sequences, Sets & Calculus 30–50% of Part A: Business Mathematics, Logical Reasoning 80–100% of Part B: Logical Reasoning, Data Representation & Sampling 45–50% of Part C: Statistics, Probability 25–30% of Part C: Statistics, Correlation & Regression 10–15% of Part C: Statistics, Index Numbers 10–15% of Part C: Statistics.

Which chapters carry the most marks in CA Foundation Quantitative Aptitude?

The highest-weight area is Data Representation & Sampling (45–50% of Part C: Statistics), followed by Logical Reasoning (80–100% of Part B: Logical Reasoning). The top two together are roughly 37 of the 100 marks, so they deserve your first revision hours.

Is this Quantitative Aptitude weightage valid for current New Scheme attempts (next expected January 2027, subject to ICAI’s notification)?

Yes. This is the ICAI New Scheme weightage (applicable from May 2024) and it applies to the current New Scheme attempts (next expected January 2027, subject to ICAI’s notification). Always cross-check the latest RTP for any amendments before the exam.

How is the CA Foundation Quantitative Aptitude paper structured?

100 marks in 3 hours, across 3 parts (Business Mathematics, Logical Reasoning, Statistics). You can practise 14 Quantitative Aptitude papers with suggested answers on this site.

Practise Quantitative Aptitude with 14 papers

Past exam papers, MTPs and RTPs for Paper 3 — with suggested answers from ICAI.

Quantitative Aptitude Practice Papers →

Related Resources

All CA Foundation Papers Weightage → Quantitative Aptitude Papers → ICAI Mock Tests →