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🧮 CA Foundation · ICAI · Quantitative Aptitude (Paper 3)

CA Foundation Quantitative Aptitude

Chapterwise notes for Paper 3 — Business Mathematics, Logical Reasoning & Statistics. Step-by-step concepts, formulas, and solved examples. Completely free.

18
Chapters
Free
Always
ICAI
Syllabus
📌 How to use: Click any chapter to access notes. Chapters marked "Coming Soon" will be added shortly — check back or follow on Instagram for updates.
🔢 Part A · Business Mathematics
8 chapters · 40 marks
01
Ratio and Proportion, Indices, Logarithms
Ratio, proportion, laws of indices, laws of logarithms, common and natural logarithm
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02
Equations
Simple equations, simultaneous linear equations, quadratic equations, applications in business
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03
Linear Inequalities
Meaning, graphical representation, solution of linear inequalities, real-life applications
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04
Mathematics of Finance
Simple and compound interest, annuity, present value, future value, sinking fund, EMI, effective rate of interest
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05
Basic Concepts of Permutations and Combinations
Fundamental counting principle, permutations, combinations, practical problems
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06
Sequence and Series — Arithmetic and Geometric Progressions
AP — nth term, sum; GP — nth term, sum, infinite GP; arithmetic and geometric means
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07
Sets, Relations and Functions, Basics of Limits and Continuity
Types of sets, Venn diagrams, types of relations and functions, domain and range, limits, continuity
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08
Basic Applications of Differential and Integral Calculus in Business and Economics
Differentiation rules, maxima and minima, cost/revenue/profit applications, integration rules, definite integrals
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🧠 Part B · Logical Reasoning
4 chapters · 20 marks
09
Number Series, Coding and Decoding and Odd Man Out
Logical number patterns, series completion, coding-decoding rules, identifying odd one out
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10
Direction Sense Test
Compass directions, distance calculation, shortest path, turn-by-turn navigation problems
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11
Seating Arrangements
Linear arrangement, circular arrangement, conditions and constraints, row-based problems
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12
Blood Relations
Family tree relationships, coded relations, mixed relationship problems
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📊 Part C · Statistics
6 chapters · 40 marks
13
Statistical Description of Data
Collection, classification, tabulation, frequency distribution, diagrams and graphs
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14
Measures of Central Tendency and Dispersion
AM, median, mode, GM, HM, range, quartile deviation, mean deviation, standard deviation, coefficient of variation
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15
Probability
Classical and empirical probability, addition and multiplication theorems, conditional probability, Bayes' theorem
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16
Theoretical Distributions
Binomial distribution, Poisson distribution, normal distribution, properties and applications
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17
Correlation and Regression
Karl Pearson's coefficient, Spearman's rank correlation, regression lines, regression coefficients, properties
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18
Index Numbers
Simple and weighted index numbers, Laspeyre's, Paasche's, Fisher's ideal index, consumer price index, uses
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