Analyzing Oil Import Data: Percentage from Iran in 2017

Let's break down how to calculate the approximate percentage of oil import from Iran in the year 2017 relative to the total oil import from Iran across all the given years (2015-2019).

Understanding the Data Table

The provided table shows the oil import data for six countries over five years. To answer the question, we need to focus specifically on the data for Iran across all the years.

Extracting Relevant Oil Import Data for Iran

We need the oil import figures for Iran for each year from 2015 to 2019:

• 2015: 20.5 million tonnes
• 2016: 21.8 million tonnes
• 2017: 21.2 million tonnes
• 2018: 18.5 million tonnes
• 2019: 17.5 million tonnes

The specific value for 2017 is 21.2 million tonnes.

Calculating Total Oil Import from Iran (2015-2019)

To find the total oil import from Iran over these years, we sum up the imports for each year:

Total Import from Iran = Import in 2015 + Import in 2016 + Import in 2017 + Import in 2018 + Import in 2019

Total Import from Iran = \(20.5 + 21.8 + 21.2 + 18.5 + 17.5\) million tonnes

Total Import from Iran = \(99.5\) million tonnes

Calculating the Percentage of Oil Import from Iran in 2017

Now, we need to find what percentage the import in 2017 (21.2 million tonnes) is of the total import from Iran (99.5 million tonnes).

The formula for percentage is:

\[ \text{Percentage} = \left( \frac{\text{Part}}{\text{Whole}} \right) \times 100\% \]For this question:

Part = Oil import from Iran in 2017 = 21.2 million tonnes

Whole = Total oil import from Iran (2015-2019) = 99.5 million tonnes

Percentage of import from Iran in 2017 = \(\left( \frac{21.2}{99.5} \right) \times 100\%\)

Percentage of import from Iran in 2017 \(\approx 0.21306 \times 100\%\)

Percentage of import from Iran in 2017 \(\approx 21.306\%\)

Approximating the Percentage

The question asks for the approximate percentage. Rounding 21.306% to the nearest whole number gives us 21%.

Conclusion

The approximate percentage of oil import from Iran in the year 2017 with respect to the total oil import from Iran in all the years together is 21%.

Revision Table: Oil Import Percentage Calculation

Here’s a summary of the calculation steps for the Iran oil import percentage in 2017:

Additional Information: Data Interpretation Skills

Solving questions based on tables and data requires strong data interpretation skills. Here are some key concepts:

• Reading Tables: Understand how rows and columns represent different categories (like Year and Country) and values (like import volume).
• Identifying Relevant Data: Focus only on the data needed for the specific question, ignoring irrelevant information.
• Calculations: Be comfortable with basic arithmetic operations (addition, subtraction, multiplication, division) and percentage calculations.
• Percentage Calculation: Remember that percentage is a way of expressing a proportion of a whole, calculated as \(\left( \frac{\text{Part}}{\text{Whole}} \right) \times 100\).
• Approximation: Understand when and how to round numbers to get an approximate answer, especially when options are given as approximate values.

Practicing with different types of data tables and charts will help improve speed and accuracy in data interpretation questions.