Mixed Graph DI
Master High-Level Data Interpretation. Combine data from multiple graphs (Pie+Table, Bar+Line) and solve Arithmetic DI based on Profit/Loss, Time/Work, and more.
Model 1: Data Bridging (Linking Graphs)
- The Concept: Information is split across two sources. Graph A gives 'Total', Graph B gives 'Breakup'.
- Strategy: Always find the Common One Unit first.
- Example: Pie Chart = % Distribution of Total Population. Table = Ratio of Male:Female.
- Step 1: Calculate Total Population for City A from Pie.
- Step 2: Apply Ratio from Table to split into Male/Female.
- Warning: Never mix percentages of different bases (e.g., % of Total vs % of Valid Votes).
Example:
Q: City A = 20% of Total (1000). Table Ratio M:F = 3:2. Find Females in A.
Solution: Total A = 20% of 1000 = 200. Females = (2/5) ├Ч 200 = 80.
Model 2: Arithmetic DI (Concept-Based)
- The Concept: Graphs represent arithmetic variables like Speed, Time, Cost Price, or Work Done.
- Logic: You must know the underlying formula (e.g., Profit = SP - CP, Work = Rate ├Ч Time).
- Missing Data Tables: Use the formula to fill in the blanks. If CP and Profit% are given, find SP.
Example:
Q: Table: Item A (CP=100, Profit%=20%). Graph: Discount=10%. Find MP.
Solution: SP = 100 + 20% = 120. SP = MP ├Ч 0.9. 120 = 0.9MP. MP = 1200/9 = 133.33.
Model 3: Radar/Spider Charts
- Structure: A web-like graph where each axis represents a variable (e.g., Subject Scores).
- Reading Data: Identify the scale carefully. Points farther from the center have higher values.
- Traps: Confusion between lines for different entities. Trace one entity completely before calculating.
Example:
Q: Radar: Student A (Math=40, Eng=50). Student B (Math=50, Eng=60). Who has higher average?
Solution: Avg A = 45. Avg B = 55. Student B.
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