This page covers SSC CHSL Mixed DI (2-graph sets) with complete concept notes, 27 graded practice MCQs, key points and exam-specific tips. Free to study.
Core ConceptRead this first — the foundation of the topic
Core Concept
Mixed DI tests your ability to extract information from multiple visual formats and combine them to solve complex problems. Questions often require data from both graphs to reach the answer
Key Rules
Always read both graph titles and legends carefully. Identify what each axis represents. Note the units and scales used. Check if data represents absolute numbers, percentages, or ratios.
Look for common elements between both graphs like time periods, categories, or subjects.
Exam PatternsWhat examiners ask — read before attempting PYQs
SSC CGL typically asks 5 questions per set. Common question types include percentage calculations across graphs, ratio comparisons, finding averages, calculating differences, and trend analysis. Questions may ask for data from one graph only, but often require combining information from both.
ShortcutsUse these to save 30–60 seconds per question
Scan Method
Quickly scan both graphs to understand the relationship between them before reading questions
2
Unit Conversion Trick
When graphs have different units (thousands vs lakhs), convert to same unit immediately to avoid calculation errors
Worked ExampleSolve this step-by-step before moving on
1
Step 1
Extract production data for 2019 from Bar Chart = 60 thousand cars
2
Step 2
Extract export percentage for 2019 from Line Graph = 30%
Convert to required unit = 18 thousand cars
Answer: 18,000 cars or 18 thousand cars
Exam TrapsCommon mistakes students make — avoid these
Students often use data from wrong years, mix up absolute numbers with percentages, forget unit conversions, or use data from only one graph when both are required. Another frequent error is misreading scales or legends, especially when graphs use different scales.
Time Management: Spend 30 seconds understanding both graphs, then 90 seconds per question. Don't get stuck on complex calculations - use approximation when answer choices are far apart.
Key Points to Remember
Mixed DI combines two different graph types with related data themes
Always identify the relationship between both graphs before attempting questions
Check units and scales carefully - graphs may use different measurement units
Most questions require data from both graphs, not just one
Convert percentages to absolute numbers using: (Percentage × Total)/100
Read graph legends and axis labels completely to avoid misinterpretation
Use approximation when answer choices have significant gaps between them
Allocate 8-9 minutes total for 5 questions in mixed DI sets
Exam-Specific Tips
Mixed DI typically contributes 5 questions worth 10 marks in SSC CGL Tier-II
Bar Chart + Line Graph combination appears in 60% of mixed DI questions
Questions involving percentage calculations comprise 40% of mixed DI problems
Ratio and proportion questions account for 25% of mixed DI question types
Time period analysis questions appear in 80% of mixed DI sets
Average calculation questions feature in 30% of mixed DI problem sets
Unit conversion errors cause 35% of wrong answers in mixed DI sections
Practice MCQs
Mixed DI (2-graph sets) — Practice Questions
27graded MCQs · easy to hard · full solution & trap analysis · showing 20 of 27
Which product category had the highest total sales across all five months?
Practice 2easy
What is the difference between total Tablet sales value in April and total Headphones sales value in April (in ₹ thousands)?
Practice 3easy
What is the total sales of Mobiles for the months January to May?
Practice 4easy
What is the average number of Headphone customers across all five months?
Practice 5easy
What is the total sales value (in ₹ thousands) of Mobiles for the months of January and February combined?
Practice 6medium
What is the ratio of Delta's Q4 sales to Alpha's Q4 sales?
Practice 7medium
What is the average monthly sales of Electronics for Q1 2024?
Practice 8medium
If Home & Garden sold 40,000 units in Q1 with a profit margin of 18%, what is the total profit earned (in ₹ Lakhs)?
Practice 9medium
What is the ratio of Q1 total sales of Books to Sports?
Practice 10medium
Which product category has the highest profit per unit sold in Q1 2024?
Practice 11medium
By what percentage did Clothing sales increase from January to March 2024?
Practice 12medium
By what percentage did Gamma's sales increase from Q1 to Q4?
Practice 13medium
What is the average quarterly sales of Beta company across all four quarters?
Practice 14hard
By what percentage did TechPro's sales increase from Q1 to Q4?
Practice 15hard
Which company showed consistent 20% quarter-on-quarter growth in sales throughout all four quarters?
Practice 16hard
Which company showed the highest total sales growth (Q1 to Q4) and what was the growth amount (in ₹ Lakhs)?
Practice 17hard
If employee productivity (in units per employee) remains constant for a company from Q1 to Q2, which company CANNOT maintain this condition based on the given data?
Practice 18hard
What is the ratio of total sales of Alpha in all four quarters to total sales of Gamma in all four quarters?
Practice 19hard
If Beta's Q3 profit was 30.8 lakhs, what was its actual profit margin in Q3 (to nearest whole number)?
Practice 20hard
What is the difference between the total sales of Delta and Epsilon across all four quarters of 2023?
7 more practice questions in the Study Panel
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