Q.8 The total exports and revenues from the exports of a country are given in the two pie charts below.
The pie chart for exports shows the quantity of each item as a percentage of the total quantity of
exports. The pie chart for the revenues shows the percentage of the total revenue generated through
export of each item. The total quantity of exports of all the items is 5 lakh tonnes and the total
revenues are 250 crore rupees. What is the ratio of the revenue generated through export of Item 1
per kilogram to the revenue generated through export of Item 4 per kilogram?
(A) 1:2 (B) 2:1 (C) 1:4 (D) 4:1
Pie chart–based data interpretation questions are frequently asked in competitive exams such as SSC,
Banking, and other aptitude tests. This question evaluates the ability to combine export quantity
percentages with revenue percentages to determine the ratio of revenue per kilogram from exports.
Question Overview
Two pie charts are given:
- Exports Pie Chart – shows the percentage of total export quantity
- Revenues Pie Chart – shows the percentage of total export revenue
Given:
- Total export quantity = 5 lakh tonnes
- Total export revenue = ₹250 crore
Required: Find the ratio of revenue generated per kilogram from export of
Item 1 to Item 4.
Step 1: Extract Data from Pie Charts
Export Quantity Distribution
- Item 1 = 11%
- Item 4 = 22%
Revenue Distribution
- Item 1 = 12%
- Item 4 = 6%
Step 2: Calculate Exported Quantities
Total quantity = 5 lakh tonnes
- Item 1 quantity = 11% of 5 lakh = 0.55 lakh tonnes
- Item 4 quantity = 22% of 5 lakh = 1.10 lakh tonnes
Step 3: Calculate Revenue Earned
Total revenue = ₹250 crore
- Item 1 revenue = 12% of 250 = ₹30 crore
- Item 4 revenue = 6% of 250 = ₹15 crore
Step 4: Revenue per Kilogram Calculation
Since 1 tonne = 1000 kg, the unit conversion cancels out when calculating ratios.
Revenue per kg:
- Item 1 = 30 ÷ 0.55
- Item 4 = 15 ÷ 1.10
Required Ratio:
(30 ÷ 0.55) : (15 ÷ 1.10)
Multiply both terms by 1.10:
(30 × 1.10 ÷ 0.55) : 15 = 60 : 15 = 4 : 1
Correct Answer
Option (D): 4 : 1
Final Conclusion
By converting percentages into actual quantities and revenues and then comparing revenue per unit,
we find that Item 1 is significantly more profitable per kilogram than Item 4.
Final Answer: 4 : 1
