SSC CHSL 2027: Data Interpretation Using Simple Tables

Data Interpretation is an important topic in quantitative aptitude preparation for SSC CHSL 2027. Table-based questions test your ability to read data, compare values, calculate percentages and find ratios. This quick revision guide explains how to solve simple table-based questions with examples and practice MCQs.

1. What Is Data Interpretation?

Data Interpretation (DI) means analysing information presented in tables, charts or graphs to answer mathematical questions. In table-based DI, information is arranged in rows and columns, making it easier to compare different values.

2. Example of a Simple Data Table

The following table shows the number of books sold by three shops over two years.

3. Solved Examples

Example 1: Find the total books sold in 2023.

Total = 150 + 125 + 100 = 375 books.

Answer: 375 books

Example 2: Find the percentage increase in total sales from 2022 to 2023.

Increase = 375 − 300 = 75

Percentage increase = (75 ÷ 300) × 100 = 25%

Answer: 25%

Example 3: Find the ratio of total sales in 2022 to 2023.

Ratio = 300 : 375 = 4 : 5

Answer: 4 : 5

4. Important Formulas for Table-Based DI

• Total: Add all the required values.
• Average: Sum of values ÷ Number of values.
• Percentage: (Part ÷ Total) × 100.
• Percentage Increase: (Increase ÷ Original Value) × 100.
• Ratio: Compare two values and simplify them.

5. SSC CHSL 2027 Practice Questions

Use the table in Section 2 to answer these questions.

1. How many books were sold by Shop B in 2023?
A. 100
B. 115
C. 125
D. 150
Answer: C. 125

2. What was the total number of books sold in 2022?
A. 250
B. 275
C. 300
D. 375
Answer: C. 300

3. What is the average number of books sold by the three shops in 2023?
A. 100
B. 115
C. 125
D. 150
Answer: C. 125

4. Which shop recorded the highest sales in 2023?
A. Shop A
B. Shop B
C. Shop C
D. All equal
Answer: A. Shop A

5. What is the percentage increase in total sales from 2022 to 2023?
A. 15%
B. 20%
C. 25%
D. 30%
Answer: C. 25%

6. Tips to Solve Data Interpretation Questions

• Read the table heading and units carefully before calculating.
• Identify the exact row and column needed for each question.
• Practise percentages, ratios and averages.
• Avoid unnecessary calculations when direct comparison is possible.
• Check your calculations before selecting an answer.

7. Frequently Asked Questions

Conclusion

For SSC CHSL 2027 data interpretation preparation, practise reading simple tables and calculating totals, averages, percentages and ratios. Regular practice will help improve calculation speed and accuracy.