As world’s Currencies’ worth is changing rapidly but recently in March 2018, the world’s cheapest currency against USD is_________?

Question

Accepted Answer

Iranian Rial. The Iranian Rial was the cheapest currency against USD in March 2018. Vietnamese Dong's value relative to USD is different from that of the Rial. Indonesian Rupiah's exchange rate does not match the lowest point compared to the Rial. Guinean Franc's worth did not make it the cheapest option compared to the Rial.