Answer:
Investment is $50 million as shown below.
The national savings is -$150m as government spent more than it received in taxes.
The national savings and the investment moving in different directions shows that the economy is running a deficit budget
Explanation:
The formula for computing GDP is given as:
GDP = C + I + G + (Ex - Im)
Where C=Consumption
I=investment
G=Government expenditure
Ex=Export
Im=Import
In this case,neither export nor import is applicable
The formula becomes:
GDP=G+I+C
Rewritten I=GDP-C-G
I=750-300-400
I=$50m
National savings is the difference between what government in taxes and government exenditure.
National savings =T-G
National savings=250-400
National savings=-150m