No there is not and there cannot be. There are a number of countries which use a dollar as its major currency unit. Among these are Australia and the US. Australia has a 20 cent coin but not a 25 cent coin whereas the US has a 25 cent coin but not a 20 cent coin. Also the smallest Australian coin is a 5 cent coin. The number of ways of making change for a dollar in Australia and US will, therefore, be different.
The 50 cent coin was a necessary denomination between a 20 cent coin and One Dollar. Apart from it being half of a Dollar, it avoided the need to have a pocket full of 20 cent coins.
All US 20 Dollar gold coins have a weight of 33.436 grams.
$600.00
less than a dollar.
less than a dollar.
500000 USD
20 Chinese yuan = 2.9517 US dollars
The British do not have a Twenty Dollar coin.
15 Thousand dollars
All US 20 Dollar gold coins have a weight of 33.436 grams.
A Canadian $20.00 gold coin is worth around $400.00