CAT 2023 Slot 3 DILR Solutions: Data Interpretation & Logical Reasoning
Introduction
The Data Interpretation and Logical Reasoning (DILR) section in CAT 2023 Slot 3 included two parts:
Data Interpretation (20 marks, 40 minutes)
Logical Reasoning (20 marks, 40 minutes)
Below is a structured analysis and solutions for common DILR question types encountered in Slot 3.
Part 1: Data Interpretation
Example Question 1: Bar Graph Analysis
Question: A bar graph shows sales data (in Lakh ₹) for four products (A, B, C, D) over four quarters (Q1-Q4).
Task: Which product had the highest average quarterly sales?
Solution:
Extract Data:
Product A: Q1=50, Q2=60, Q3=70, Q4=80 → Total = 260
Product B: Q1=40, Q2=50, Q3=60, Q4=70 → Total = 220
Product C: Q1=30, Q2=40, Q3=50, Q4=60 → Total = 180
Product D: Q1=20, Q2=30, Q3=40, Q4=50 → Total = 140
Calculate Averages:
A: 260/4 = 65 Lakh ₹
B: 220/4 = 55 Lakh ₹
C: 180/4 = 45 Lakh ₹
D: 140/4 = 35 Lakh ₹
Answer: Product A had the highest average sales.
Common Pitfall: Confusing total sales with average sales. Always divide by the number of quarters.
Part 2: Logical Reasoning
Example Question 2: Seating Arrangement
Question: Six people (P, Q, R, S, T, U) are sitting in a circle. Each person has a different favorite color (Red, Blue, Green, Yellow, Orange, Purple).
Clues:
P sits between Q and T.
S is not adjacent to R.
The person who likes Green is opposite to the one who likes Orange.
Solution:
Draw a Circle: Label positions 1 to 6.
Clue 1: Arrange P between Q and T. Possible arrangement: Q-P-T-?-?-?
Clue 2: S ≠ adjacent to R. Place S and R with at least one person between them.
Clue 3: Green and Orange are opposite. Assign colors accordingly.
Final Arrangement:
Q (Blue)
P (Red)
T (Green)
S (Yellow)
U (Orange)
R (Purple)
Answer: Q likes Blue, and R likes Purple.
Key Tip: Use process of elimination for constraints like non-adjacency.
Example Question 3: Blood Relation
Question: If A is the sister of B, and B is the father of C, what is C’s relation to A?
Solution:
A is B’s sister → A and B are siblings.
B is C’s father → C is B’s child.
Therefore, C is A’s nephew/niece.
Answer: C is A’s nephew or niece.
Part 3: Case Study (Assumption-Based)
Question: A company plans to launch a product. Factors affecting the decision:
Cost of production.
Consumer demand.
Competitor pricing.
Task: Evaluate the statement: "The decision will be influenced by consumer demand."
Solution:
Assumption: Consumer demand directly impacts sales volume.
Analysis: If demand is high, even with higher costs, profits may offset expenses.
Conclusion: The statement is valid as demand is a critical success factor.
Answer: The statement is correct.
Final Tips for CAT 2023 DILR
Time Management: Allocate 25 minutes for Data Interpretation and 25 minutes for Logical Reasoning.
Practice Graph Types: Focus on bar graphs, pie charts, and tables.
Logical Shortcuts: Use Venn diagrams for set theory and ladder diagrams for blood relations.
Review Errors: Revisit incorrect answers to avoid repetition.
Download Full Solutions Here: [Link to PDF]
Note: Actual CAT 2023 questions may vary. This is a generalized guide based on common DILR patterns.
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