Trivia: The U.S. dollar is the official currency of which of these countries?
Ecuador
Guyana
Sri Lanka
Laos
The correct answer is Ecuador
So why is this answer correct? : Ecuador is just one of several countries who treat the U.S. dollar as their official currency, joining nations such as Timor-Leste, Zimbabwe, and El Salvador. The U.S. dollar has long possessed significant value internationally — it has been considered the world’s reserve currency since the signing of the Bretton Woods Agreement in 1944.