Question

No of female population in the country A in year 2018 was that percentage of difference of population of male and female in year 2019 in country D?

• A. 2700
• B. 1300
• C. 2300
• D. 2100

Hint:

To divide decimals quickly:
\[ \frac{3.9}{0.3} = \frac{39}{3} = 13 \]
Then, simply multiply by 100 to get \(1300\%\).

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
This problem requires calculating a value as a percentage of another.
First, we find the two target values from the table, then compute their ratio and multiply by 100.
Key Formula or Approach:
The percentage is calculated as:
\[ \text{Percentage} = \frac{\text{Female population of A in 2018}}{\text{Difference between Male and Female in D in 2019}} \times 100 \]

Step 2: Detailed Explanation:
Let us extract the relevant data values from the table:
1. Female population in country A in the year 2018:
\[ \text{Value 1} = 3.9 \text{ thousand} \]
2. Difference of population of male and female in the year 2019 in country D:
- Male in D in 2019 = 14.5
- Female in D in 2019 = 14.2
\[ \text{Difference} = 14.5 - 14.2 = 0.3 \text{ thousand} \]
3. Calculate the required percentage:
\[ \text{Percentage} = \frac{3.9}{0.3} \times 100 \]
\[ \text{Percentage} = 13 \times 100 = 1300\% \]
This matches Option B.

Step 3: Final Answer:
The female population of A in 2018 is 1300% of the population difference in D in 2019.