Quantitative Aptitude – Data Interpretation Advanced (Caselet, Charts & Tricks)
Advanced DI includes caselet-based questions and complex charts. It requires speed, accuracy, and strong calculation skills.
Types of Advanced DI
- Caselet DI (no table given)
- Mixed Graph DI
- Missing Data DI
Caselet DI Example
A company has 5 departments: A, B, C, D, E.
Total employees = 500
A = 20%, B = 25%, C = 15%, D = 10%, E = remaining
Question: Number of employees in E?
Solution:
A = 100, B = 125, C = 75, D = 50
Total = 350
E = 500 − 350 = 150 ✔
Missing Data DI
Sometimes values are missing, and you need to find using logic.
Tip: Use given totals and relationships.
Comparison Questions
Compare values quickly using approximation.
Example:
498 × 21 vs 502 × 19 → approximate and compare
Time Management
- Spend max 5–7 minutes per DI set
- Skip lengthy calculations
- Attempt easy questions first
Practice Questions
Total students = 600
A = 20%, B = 30%, C = 25%, D = remaining
Q1: Students in D?
Q2: Students in A + B?
Q3: Percentage of C?
Answers
Q1: 150
Q2: 300
Q3: 25%
Quick Tricks
- Use approximation
- Focus on percentages
- Practice regularly
Final Tip
Advanced DI is the key to scoring high in mains. Practice regularly to improve speed and accuracy.
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