Title: 2020 DILR Slot 3 Answer Key & Explanation for Indian Competitive Exams
Category: Data Interpretation & Logical Reasoning (DILR)
Introduction
The 2020 DILR Slot 3 exam featured a mix of Data Interpretation (DI) and Logical Reasoning (LR) questions. This post provides detailed solutions, step-by-step explanations, and key insights for common question types encountered in Indian competitive exams likeCAT, CLAT, and State PSCs.
1. Data Interpretation (DI) Questions
Example Question 1:
A bar graph shows the sales (in units) of four products (A, B, C, D) over four quarters (Q1-Q4). Answer the following:
Q: Which product had the highest average sales per quarter?
A: Product C
Explanation:
Total sales for C = 240 + 260 + 250 + 270 = 1040
Average = 1040 / 4 = 260 units/quarter
Compare with other products (A: 220, B: 280, D: 240).
Example Question 2:
Given a pie chart representing population distribution by age groups (儿童, 少年, 青年, 老年):
Q: What percentage is the青年 population if the total population is 10,000?
A: 35%
Explanation:
-青年 slice = 35% → 10,000 × 0.35 = 3,500 people.
2. Logical Reasoning (LR) Questions
Example 1: Seating Arrangement
Eight people (P, Q, R, S, T, U, V, W) are sitting in a circle. Answer:
Q: Who is sitting between R and W?
A: S
Explanation:
Use the clues: R is adjacent to P and S; W is opposite V. Map positions clockwise.
Example 2: Blood Relations
If A is the sister of B, and B is the father of C, what is C’s relation to A?
A: Nephew/Niece
Explanation:
A is B’s sister → C is B’s child → C is A’s nephew/niece.
Example 3: Pigeonhole Principle
In a group of 37 people, what is the minimum number of people sharing the same birth month?
A: 5
Explanation:
12 months × 3 = 36 → 37th person forces at least 4+1=5 in one month.
3. Caselet DI (Advanced)
Case Study: A company’s profit increased from 50K to 80K over 4 years. Analyze tables showing year-wise costs and expenses.
Q: Which year had the highest cost of production?
A: Year 3 ($42K)
Explanation:
Compare production costs in the table (e.g., Year 1: 38K, Year 3: 42K).
4. Key Tips for DILR Success
DI:
Practice mental math for percentages, averages, and ratios.
Use answer choices to eliminate wrong options.
LR:
Draw diagrams for seating/linear arrangements.
Master logical connectors (e.g., "if-then," "except").
Time Management:
DI: 60% time on charts/graphs, 40% on calculations.
LR: 70% time on puzzles, 30% on Syllogism/Alphanumeric.
5. Common Pitfalls to Avoid
DI: Misreading axis labels or units (e.g., M vs. B).
LR: Assuming unwarranted relationships in blood relative questions.
Conclusion
Mastering DILR requires consistent practice and strategic time allocation. For 2020 Slot 3 questions, focus on interpreting graphs accurately and applying logical principles systematically. Use official answer keys to verify solutions and refine your approach.
Note: This is a generalized guide. For exact 2020 Slot 3 questions, refer to official exam papers or reliable sources like NTA preparation materials.
Tagged: #DILR #CAT2020 #IndianExams #DataInterpretation #LogicalReasoning
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