Final Answer:
The level of private investment in this economy is 300
The correct option is A.
Step-by-step explanation:
The level of private investment in this economy can be determined using the equation: Savings = Investment + Government Surplus + Trade Surplus. Rearranging the equation to solve for Investment, we get:
Investment = Savings - Government Surplus - Trade Surplus
Given:
Private Savings = 600
Government Budget Surplus = 200
Trade Surplus = 100
Substituting the values into the equation:
Investment = 600 - 200 - 100
Investment = 300
Therefore, the level of private investment in this economy is a) 300.