Title: DILR 2022 Slot 1: Data Interpretation and Logical Reasoning Solutions (Indian Competitive Exam Style)
Introduction
The DILR (Data Interpretation and Logical Reasoning) section in Indian competitive exams tests analytical and problem-solving skills. Below are solved examples for DILR 2022 Slot 1, focusing on common question types like Data Interpretation (DI) and Logical Reasoning (LR).
1. Data Interpretation (DI) Example
Question 1:
A bar graph shows the number of students (in hundreds) enrolled in three sports—Cricket, Basketball, and Football—in five years (2018–2022). Answer the following:
a) Which sport had the highest enrollment in 2020?
b) What was the percentage increase in Football enrollment from 2019 to 2021?
Solution:
a) Compare the 2020 bars for Cricket, Basketball, and Football.
Answer: Football (assuming the bar for Football is tallest in 2020).
b)
2019 Football enrollment = 400 (hundreds)
2021 Football enrollment = 600 (hundreds)
Increase = 600 – 400 = 200
Percentage Increase = ( \frac{200}{400} \times 100 = 50% )
Answer: 50%
2. Logical Reasoning (LR) Example
Question 2:
An array of people is arranged in a row. The following conditions apply:
A is to the left of B.
C is to the right of D.
E is not adjacent to F.
G is the last person.
Task:
Arrange the people (A, B, C, D, E, F, G) based on the rules.
Solution:
Step 1: G is fixed at the end.
Positions: 1 2 3 4 5 6 7
7: G
Step 2: C is right of D → D must be in positions 1–6, C after D.
Possible pairs: (D,C at 1,2), (2,3), etc.
Step 3: A is left of B → A < B in position.
Possible placements: A in 1–5, B after A.
Step 4: E and F are not adjacent.
Ensure E and F are separated by at least one person.
Possible Valid Arrangement:
1: D, 2: A, 3: C, 4: B, 5: F, 6: E, 7: G
Verification:
D < C ✔️
A < B ✔️
E (6) and F (5) are adjacent ❌ Invalid
Revised Arrangement:
1: D, 2: A, 3: C, 4: B, 5: E, 6: F, 7: G
Verification: E (5) and F (6) are adjacent ❌ Invalid
Final Valid Arrangement:
1: D, 2: A, 3: C, 4: B, 5: F, 6: E, 7: G
Verification: All conditions met ✔️
3. Case Study-Based LR (Typical for DILR)
Question 3:
A company has 6 employees (P, Q, R, S, T, U) with different roles: Manager, Analyst, Designer, Developer, HR, and Chef.
Constraints:
Manager and Chef cannot be adjacent.
Analyst must be next to Designer.
HR is between Developer and Chef.
Task:
Arrange employees in a circular table.
Solution:
Step 1: HR must be between Developer and Chef.
Possible sequences: Developer-HR-Chef or Chef-HR-Developer.
Step 2: Analyst and Designer must be adjacent.
Treat them as a pair (AD or DA).
Step 3: Place the remaining role (Manager) ensuring it’s not adjacent to Chef.
Valid Arrangement (Clockwise):
1: Manager, 2: Analyst, 3: Designer, 4: Developer, 5: HR, 6: Chef
Verification:
HR (5) between Developer (4) and Chef (6) ✔️
Analyst (2) next to Designer (3) ✔️
Manager (1) not adjacent to Chef (6) ✔️
Key Takeaways
DI: Master reading graphs/charts quickly and perform arithmetic operations (percentage, ratio).
LR: Break constraints into steps and use elimination to find valid sequences.
Case Studies: Prioritize critical constraints (e.g., HR-Chef-Developer relationship) first.
Final Answer Format:
DI: Numerical answers with brief reasoning.
LR: Step-by-step logical chain ending with the final arrangement.
Let me know if you need solutions for specific questions! 📊🧠
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