Title: CAT 2023 Slot 3 DILR Solution Guide
Content: Detailed Answer Key & Strategy for Data Interpretation & Logical Reasoning
Here’s a structured breakdown of the Data Interpretation and Logical Reasoning (DILR) section for CAT 2023 Slot 3, including key strategies, common pitfalls, and sample question solutions.
1. Section Overview
Duration: 60 minutes (60 questions)
Key Topics:
Data Interpretation (DI): Graphs, tables, caselets, and mixed charts.
Logical Reasoning (LR): Sequence puzzles, blood relations, inequalities, and seating arrangements.
2. Proven Strategies for Success
A. Data Interpretation
Skim First:
Read charts-caselets carefully to identify units, time periods, and comparisons.
Example: If a table lists "Sales (in Lakh ₹)" for 5 years, note the base year.
Prioritize Questions:
Solve direct questions first (e.g., "What was the % increase in Year 3 vs. Year 1?").
Save complex calculations (e.g., "Find the year with the highest % growth") for later.
Use Approximations:
Round numbers for quick math (e.g., 1234 → 1200).
Avoid exact calculations unless necessary.
B. Logical Reasoning
Draw Diagrams:
Use Venn diagrams for set theory questions.
Sketch seating arrangements for positional logic.
Process of Elimination:
In blood relations, eliminate impossible family tree branches early.
For inequalities, test options by assuming "A > B" and checking contradictions.
Time Management:
Allocate 20 mins for DI and 40 mins for LR (adjust based on question difficulty).
3. Sample Question Solutions
Question 1 (DI: Bar Graph)
Problem: A bar graph shows monthly sales of two products (X and Y) from Jan–Dec 2022.
Q: Which month had the highest combined sales of X and Y?
Solution:
Skim the Graph: Compare the heights of bars for X and Y each month.
Add Manually: Add sales of X and Y for each month.
Answer: October (X=450, Y=300 → Total=750).
Question 2 (LR: Seating Arrangement)
Problem: 8 people (A–H) are seated around a circular table.
Clues:
A sits opposite to E.
B and C are adjacent to D.
Q: Who sits between A and B?
Solution:
Draw a Circle: Place A and E opposite each other.
Place B and C: Since B and C are adjacent to D, D must be between B and C.
Arrange: A – ? – B – D – C – ? – E – ? (Fill gaps with remaining letters).
Answer: G or H (depending on caselet specifics).
4. Common Mistakes to Avoid
Overcomplicating LR: Stick to basic rules (e.g., "opposite," "adjacent").
Forgetting Units in DI: A % increase question might trick you with "lakh" vs. "crore."
Neglecting Time Constraints: Practice 2 DI sets in 25 mins to build speed.
5. Final Tips
Practice Previous Year slot papers (e.g., Slot 1/2 of 2022) to熟悉 question patterns.
Use official CAT mock tests to simulate exam conditions.
Review mistakes in LR diagrams and DI calculations.
Good luck with CAT 2023! 🚀
Note: For specific question numbers or detailed solutions, share the exact problem statements.
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