CA Foundation Paper 3 study guide
CA Foundation Paper 3 · Work through your exam, one topic at a time.
CA Foundation is the entry-level stage of the Chartered Accountancy course offered by the Institute of Chartered Accountants of India (ICAI). ICAI describes the route with the invitation "Join CA Course - Fulfill your Dreams Register Here", and maintains separate student-facing sections such as Courses offered by ICAI, Examination, the BoS Knowledge Portal and Students - FAQs. This page is an independent study resource and is not affiliated with, endorsed by, or operated by ICAI. It is written for school leavers, graduates switching track, and anyone preparing to sit Paper 3, which combines Business Mathematics, Logical Reasoning and Statistics. The CA Foundation Paper 3 study guide has 5 sections and about 1,400 words.
01Business Mathematics: Ratio, Proportion and Logarithms
Domain 1 examines foundational algebra used in commercial calculations: ratio and proportion, indices, logarithms and their applications. Questions usually require simplifying expressions, solving proportional equations or using log laws without a calculator.
276 words, about 1 min02Logical Reasoning: Series, Coding and Arrangement
Domain 2, Logical Reasoning, tests pattern recognition and constraint-based reasoning: number and letter series, coding–decoding, direction sense, seating/arrangement and blood relations. The exam rewards a written abstraction of the rule before calculating.
292 words, about 1 min03Statistics: Central Tendency and Dispersion
Domain 3, Statistics, tests summarising data and measuring spread. Expect computation of mean, median, mode, quartiles, range, variance, standard deviation and coefficient of variation, plus interpretation of what each measure says.
276 words, about 1 min04Business Mathematics: Counting and Commercial Arithmetic
Domain 4, Business Mathematics, focuses on counting and commercial arithmetic: permutations and combinations, simple and compound interest, and effective rates. Questions often combine “arrange or select” decisions with a financial formula.
290 words, about 1 min05Logical Reasoning and Statistics: Data Interpretation and Probability
Domain 5, Logical Reasoning and Statistics, combines data interpretation with elementary probability and logical constraints. Expect tables, percentage changes, set-based counting, classical probability and simple conditional probability without replacement.
266 words, about 1 min