Study Material — 4 PYQs (2024–2024) · Concept Notes · Shortcuts
IBPS RRB PO Mixed DI (2-graph sets) is a frequently tested subtopic — 4 previous year questions from 2024–2024 papers are included below with concept notes, key rules and shortcut tricks.
IBPS RRB PO Mixed DI (2-graph sets) — Past Exam Questions
4 questions from actual IBPS RRB PO papers · all shown free · click option to reveal solution
Exam Q 12024Previous Year Pattern
What is the total sales value (in lakhs ₹) for Electronics across all three months?
Exam Q 22024Previous Year Pattern
By what percentage did Clothing sales increase from January to March?
Exam Q 32024Previous Year Pattern
Which category generated the highest profit in March? (Use profit = sales × margin%)
Exam Q 42024Previous Year Pattern
What is the ratio of February sales of Books to February sales of Home & Garden?
Concept Notes
Mixed DI (2-graph sets)— Rules & Concept
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
16graded MCQs · easy to hard · full solution & trap analysis
Which category showed the highest absolute growth (in lakhs) from January to March?
Practice 2easy
What is the total sales of the Clothing category for Q1 2024?
Practice 3easy
What is the ratio of February Electronics sales to February Books sales?
Practice 4easy
What is the average monthly sales of the Home & Garden category?
Practice 5medium
If Home & Garden sales in Q1 of the previous year were ₹102.86 lakhs, what was the growth rate from previous year Q1 to current year Q1? (Round to nearest whole number)
Practice 6medium
What is the ratio of Clothing sales in Q2 to Sports sales in Q4?
Practice 7medium
Which product category has the highest growth rate, and what is the difference between its growth rate and the lowest growth rate?
Practice 8medium
Which product category showed the highest average quarterly sales across all four quarters?
Practice 9medium
By what percentage did Electronics sales increase from Q1 to Q4?
Practice 10hard
What is the difference between the total sales of Alpha in 2023 and the total sales of Epsilon in 2023?
Practice 11hard
Which plant showed the maximum percentage improvement in defect rate from January to March, and what is that improvement?
Practice 12hard
What is the total number of defective units (in thousands) produced across all five plants in February?
Practice 13hard
If the total profit earned by all five companies in Q2 is ₹X crores, what is the value of X? (Profit = Sales × Profit Margin / 100)
Practice 14hard
What is the average revenue per thousand units produced for Plant C across all three months?
Practice 15hard
In Q4, what is the ratio of profit (in ₹ crores) earned by Beta to the profit earned by Delta? (Profit = Sales × Profit Margin / 100)
Practice 16hard
What is the average profit margin of Gamma across all four quarters, and how much does it differ from the average profit margin of Delta across all four quarters?
60-Second Revision — Mixed DI (2-graph sets)
Remember: Read both graph titles and establish the connection between datasets
Formula: Percentage to absolute = (Percentage × Base value)/100
Trap: Watch for different units between graphs - convert immediately
Strategy: Scan both graphs for 30 seconds before reading any question
Check: Verify which graph contains the data needed for each calculation step
Tip: Use elimination method when calculations become too complex
Time: Maximum 90 seconds per question, move on if stuck beyond this limit