Here’s a structured solution for a hypothetical CAT 2020 VarC Slot 1 question involving data interpretation. This example assumes a common VarC format (e.g., a bar graph or line chart) and addresses potential question types:
Sample Question (Hypothetical):
"A bar graph shows the number of books sold by a bookstore in four quarters (Q1-Q4) across two cities, City X and City Y. Which city had the largest percentage increase in sales from Q2 to Q3?"
Data (in thousands):
City X: Q2 = 120, Q3 = 150
City Y: Q2 = 80, Q3 = 100
Solution (English):
Identify the formula for percentage increase:
[
\text{Percentage Increase} = \left( \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \right) \times 100
]
Calculate for City X:
[
\frac{150 - 120}{120} \times 100 = \frac{30}{120} \times 100 = 25%
]
Calculate for City Y:
[
\frac{100 - 80}{80} \times 100 = \frac{20}{80} \times 100 = 25%
]
Compare results:
Both cities had a 25% increase. However, if the data were different (e.g., City X: 120→160, City Y: 80→120), City X’s increase would be:
[
\frac{160 - 120}{120} \times 100 = 33.33% \quad (\text{City X wins}).
]
Conclusion:
In the hypothetical data above, both cities had equal percentage increases. If the question requires a unique answer, check for nuances (e.g., absolute vs. relative growth).
Key Tips for CAT VarC:
Focus on the question stem: Identify whether it asks for absolute values, percentage changes, or ratios.
Avoid calculation errors: Use approximations (e.g., "80 to 100 is a 25% increase") to verify results.
Watch for traps: Ensure the "old value" (denominator) is correctly identified (e.g., Q2 is the base for Q3 comparisons).
Let me know if you need help with a specific question or a different type of VarC problem! 📊
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