Multiple choice general knowledge culture Which is the weakest currency/currencies in the world? Singapore Dollar Srilankan rupee Vietnamese Dong Zimbabwean Dollar Reveal answer Fill a bubble to check yourself C,D Correct answer Explanation Vietnamese Dong and Zimbabwean Dollar are among the weakest currencies. Zimbabwe's currency became so devalued it was abandoned. Iran's Rial is also extremely weak. Options A and B are not among the weakest.