The TNPSC Group 4 exam may include mathematics-related questions in the Aptitude and Mental Ability section. While I can’t provide specific questions, I can offer you a list of topics that are commonly included in the mathematics section of such exams. Here are some important topics to focus on:
- Numerical Ability:
- Number Systems: Properties of integers, divisibility rules, LCM, HCF.
- Fractions and Decimals: Simplification, operations on fractions and decimals.
- Percentages: Calculation of percentages, applications in profit and loss, discount, interest, etc.
- Ratio and Proportion: Direct and inverse proportion, comparison of ratios.
- Time and Work: Problems based on work efficiency, time and work, wages, etc.
- Time and Distance: Problems on speed, time, distance, and relative speed.
- Average: Calculation of average, weighted average, problems on average speed, average age, etc.
- Simple and Compound Interest: Interest calculations, applications in loans, investments, etc.
- Logical Reasoning:
- Series Completion: Finding the missing term in a series, number series, alphabetical series.
- Analogy: Identifying the relationship between pairs of words or numbers.
- Classification: Grouping of items based on similarities or differences.
- Coding-Decoding: Coding and decoding of words, letter-shifting, number substitution.
- Blood Relations: Problems based on family relations, coded blood relations.
- Directions: Problems on directions, distance and displacement.
- Alphabet and Number Test: Letter and number arrangements, coding by analogy.
- Venn Diagrams: Problems based on simple and compound diagrams.
- Data Interpretation:
- Tabulation: Data represented in tabular form, interpretation of tables.
- Bar Graphs: Data represented in bar graphs, interpretation of data.
- Pie Charts: Problems based on pie charts, calculation of percentages, angles, etc.
- Line Graphs: Interpretation of trends, relationships, and comparisons represented in line graphs.
- Mixed Graphs: Combination of different types of graphs, interpretation of combined data.
Candidates preparing for the mathematics section of the TNPSC Group 4 exam should practice solving problems from each of these topics. It’s important to understand the concepts thoroughly and then practice solving a variety of problems to improve speed and accuracy. Utilizing previous years’ question papers and mock tests will also be beneficial for exam preparation.