To calculate Gross National Income (GNI) per capita for each country, we use the formula:
\[ \text{GNI per capita} = \frac{\text{GNI}}{\text{Population}} \]
Let's compute the GNI per capita for each country:
-
Country D:
- GNI: US$2,000
- Population: 200
- GNI per capita: \( \frac{2000}{200} = 10 \) US$
-
Country B:
- GNI: US$4,500
- Population: 200
- GNI per capita: \( \frac{4500}{200} = 22.5 \) US$
-
Country A:
- GNI: US$3,900
- Population: 80
- GNI per capita: \( \frac{3900}{80} = 48.75 \) US$
-
Country C:
- GNI: US$10,000
- Population: 1,000
- GNI per capita: \( \frac{10000}{1000} = 10 \) US$
Now, let's summarize the GNI per capita for each country:
- Country D: 10 US$
- Country B: 22.5 US$
- Country A: 48.75 US$
- Country C: 10 US$
Based on the calculations, Country A has the highest GNI per capita at 48.75 US$.