Lecture on Reasoning and Aptitude

Introduction

• Purpose: To help students preparing for GATE, ESE exams, and campus placements.

What is Reasoning and Aptitude?

Aptitude

• Definition: The natural ability to do something.

Reasoning

• Definition: The process of evaluation using the aptitude you possess.
• Example: Solving a problem statement using your natural ability.

Subsections of Reasoning and Aptitude

1. Quantitative Ability

• Based on: Mathematics.
• Example Problem: Percentage increase in the area of a rectangle when dimensions are increased.
  • Solution Steps:
    1. Initial length: L; Initial breadth: B
    2. New length: L' = 1.15L
    3. New breadth: B' = 1.25B
    4. New area: 1.15L * 1.25B = 1.44LB
    5. Percentage increase: 44%*

2. Logical Ability

• Based on: Logical thinking.
• Example Problem: Finding the 6th number in a sequence.
  • Solution Steps:
    1. Sequence: 2, 12, 36, 80, 150
    2. Pattern: n^2 + n^3
    3. 6th number: 6^2 + 6^3 = 36 + 216 = 252

3. Verbal Ability

• Based on: English language.
• Example Problem: Finding synonyms.
  • Example: 'Implore' -> 'Beg'
  • Note: Not included in this course but in the English course.

4. Data Interpretation

• Based on: Data in various forms (e.g., tables, graphs, pie charts).
• Example Problem: Calculating percentage differences from a pie chart.

Course Syllabus

1. Ratio and Proportion
2. Number System
3. Set Theory and Venn Diagram
4. Percentages
5. Time and Work
6. Profit and Loss
7. Pipes and Tanks
8. Time and Distance
9. Simple and Compound Interest
10. Permutations and Combinations
11. Probability
12. Calendar
13. Clock
14. Directions
15. Cubes
16. Dices
17. Seating Arrangements
18. Blood Relations
19. Logical Reasoning
20. Data Interpretation
21. Analytical Ability
22. Coding and Decoding

Conclusion

• Overview of topics covered in the course.
• Emphasis on solving many questions to master all topics.
• End of the lecture. Next lecture details to follow.