I do not know of a currency in use by 27 countries.
Russia
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Dollar and Euro
Currency pairs are used in trades in the forex market and involves the buying one countries currency and selling another countries currency An example of a currency pair would be EUR/USD where EUR stands for Euro and USD stands for American Dollar.
Countries have their own Currency as a lot of them were made to only be used in their country of origin. Currencies like the US Dollar are widely accepted in countries outside the US due to its value over the countries own currency.
The Euro is used in both countries. Prior to the Euro, they currency was the franc and the mark, respectively.
the basic currency used in many european countries use "euros" :) hope this helped
No currency is the currency for most European countries. There are over 50 countries in Europe. 18 of them use the Euro, but most use other currencies. So the Euro is the most common currency, but it is not used by most European countries.
There is no one money in Europe. 26 countries use the Euro (symbol '€') as a common currency. All the countries in Europe (with the exception of Liechtenstein) have their own individual currencies.
The most widely used currency on the planet is the U.S. Dollar. It has global recognition and in some countries is even an official currency beating out the per-existing currency.
There is much more than just one currency in Europe. However, the most used currency is the Euro (used by 20 countries).
No.