Focused Study for Competitive Exams
Data Interpretation – Tables & Calculation Tricks
Data Interpretation (DI) is a high-weightage topic in bank exams. Speed and accuracy are key.
1. What is Data Interpretation?
DI involves analyzing data from tables, charts, or graphs and answering questions based on it.
2. Table-Based DI (Example)
Sales Data (in units):
| Year | Product A | Product B |
|---|---|---|
| 2021 | 100 | 150 |
| 2022 | 120 | 180 |
| 2023 | 140 | 200 |
3. Sample Questions
Q1: What is total sales of Product A?
Solution:
100 + 120 + 140 = 360
Q2: Difference between Product B in 2023 and 2021?
Solution:
200 - 150 = 50
Q3: Percentage increase in Product A (2021 to 2023)?
Solution:
Increase = 40
% = (40/100) × 100 = 40%
4. Speed Calculation Tricks
- Use approximation when allowed
- Convert percentages into fractions
- Avoid full multiplication
- Round numbers for faster solving
Tough Problems
Q1:
Find average sales of Product B over 3 years.
Solution:
(150 + 180 + 200)/3 = 530/3 = 176.67
Q2:
What is ratio of Product A (2023) to Product B (2022)?
Solution:
140 : 180 = 7 : 9
Q3:
Find total sales of both products in 2022.
Solution:
120 + 180 = 300
Exam Strategy
- Read table carefully before solving
- Start with easy questions
- Use approximation to save time
- Avoid lengthy calculations
Shaktimatha Learning
Quantitative Aptitude • Bank Exams • Competitive Preparation
Quantitative Aptitude • Bank Exams • Competitive Preparation
No comments:
Post a Comment