Here’s a structured guide to solving DILR (Data Interpretation and Logical Reasoning) questions for the 2019 Slot 2 CAT exam, tailored for Indian competitive exams. This includes common question patterns, strategies, and examples:
1. Key Question Patterns in 2019 DILR (Slot 2)
A. Data Interpretation (DI)
Graphs/Charts: Time-based (e.g., sales, production) or comparative (e.g., market share).
Example: "A bar graph shows monthly revenue for 5 companies. Calculate the % growth from Q1 to Q2 for Company X."
Pies/Tables: Distribution of resources (e.g., budget allocation, population demographics).
Example: "A table lists expenses of a hospital. What is the ratio of medical to non-medical expenses?"
B. Logical Reasoning
Seating Arrangements: Circular/Linear with constraints (e.g., "A sits opposite to B, who is not adjacent to C").
Puzzles: Floor/Wall/Group arrangements (e.g., "Six people in a room with nationality, profession, and age clues").
Blood Relations: Family tree puzzles (e.g., "If E is the sister of F, who is M’s son?").
Coding-Decoding: Letter/Number substitutions (e.g., "If P=5, Q=6, then 'CAT' translates to...").
2. Proven Strategies
A. DI Time-Saving Tips
Skim charts first: Note axes, labels, and units.
Use approximation: Round numbers (e.g., 1,842 ≈ 1,800) for quick % calculations.
Focus on asked questions: Avoid solving irrelevant data.
B. Logical Reasoning Hacks
Elimination: Rule out contradictions (e.g., if "X is taller than Y" and "Y > Z," eliminate Z as the tallest).
Process of elimination: Use answer choices to backtrack.
Create mental frameworks: Visualize seating arrangements or timelines.
3. Sample 2019-Style Questions
Question 1 (DI)
Data: A table shows monthly steel production (in Lakh Tons) for 4 factories (A, B, C, D) from Jan–Dec 2018.
Month
A
B
C
D
Jan
20
25
30
35
Feb
22
24
28
36
...
...
...
...
...
Question: What is the average production of Factory C from July to September?
Solution:
Sum = 30 (July) + 32 (Aug) + 28 (Sep) = 90
Average = 90 / 3 = 30 Lakh Tons.
Question 2 (LR)
Puzzle: Six friends (A, B, C, D, E, F) are sitting in a circle. Each person has a different favorite color (Red, Blue, Green, Yellow, Orange, Purple).
Constraints:
A sits next to B but not C.
D is opposite E.
Green is between Orange and Purple.
Question: Which person is adjacent to both Red and Yellow?
Solution:
Draw a circle. Assign positions based on constraints.
Example arrangement:
A (Red) → B (Blue) → C (Green) → D (Yellow) → E (Purple) → F (Orange).
Answer: D (Yellow) is adjacent to C (Green) and E (Purple). Adjust based on actual constraints.
4. Time Management
DI: 40 mins for 20 questions → ~2 mins per question.
LR: 40 mins for 20 questions → ~2 mins per question.
Prioritize: DI is often easier; start here if stuck.
5. Common Mistakes to Avoid
Misreading axes labels in graphs.
Overcomplicating seating puzzles (simplify constraints).
Forgetting to check units (e.g., thousands vs. lakhs).
6. Final Tips
Practice previous 5 years’ papers (CAT 2015–2019).
Use official mock tests for slot-specific patterns.
Review weak areas (e.g., permutations, ratios).
For more tailored practice, refer to Oliveboard or V Mock for 2019 Slot 2 DILR simulations.
Let me know if you need further clarification! 🎯
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