The table shows the total exports (in crore rupees) of six countries A to F over 2019 to 2023. Note: Income equals Exports minus Imports.
| Country | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|
| A | 40 | 80 | 120 | 90 | 180 |
| B | 60 | 50 | 30 | 100 | 200 |
| C | 100 | 110 | 140 | 180 | 130 |
| D | 90 | 120 | 40 | 30 | 50 |
| E | 120 | 100 | 110 | 200 | 220 |
| F | 48 | 80 | 120 | 150 | 240 |
Over all the given years, the average export of country E is approximately what percentage more than the average export of country C?
A13 and 7/11 percent ✓ Correct
B9 and 1/11 percent
C13 and 5/7 percent
D12 and 1/7 percent
Correct answer: (A) 13 and 7/11 percent
Explanation
The average export of E is about 13 and 7/11 percent more, so that is the answer.
Country E's exports are 120, 100, 110, 200 and 220, averaging 150.
Country C's exports are 100, 110, 140, 180 and 130, averaging 132.
The difference in averages is 18.
Dividing 18 by 132 and taking a percentage gives about 13.64.
That equals 13 and 7/11 percent.
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