To calculate Real GDP, you can use the formula:
\[ \text{Real GDP} = \frac{\text{Nominal GDP}}{\text{GDP Deflator}} \times 100 \]
Given:
- Nominal GDP = 7.8 billion dollars
- GDP Deflator = 120
Substituting the values into the formula:
\[ \text{Real GDP} = \frac{7.8 , \text{billion}}{120} \times 100 \]
Calculating this:
- \( \frac{7.8}{120} = 0.065 \)
- \( 0.065 \times 100 = 6.5 , \text{billion dollars} \)
Thus, the Real GDP is 6.5 billion dollars.
Therefore, the correct response is:
6.5 billion dollars.