A country's Total Trade is billion and its Trade Balance is billion (surplus). What is the value of its Exports?
A
Step-by-Step Solution
Key idea: This is a reverse-engineering question, recognisable because it provides the aggregate metrics (Total Trade and Trade Balance) and asks for a specific component (Exports).
Step 1: Recall the relationships. Total Trade = and Trade Balance = .
Step 2: Add the two equations. . Therefore, .
Step 3: Substitute the given values. .
Step 4: Solve for . .
Answer: billion.