Greece has serious fiscal problems and will be in a better position to deal with them as a member of the euro zone than outside the currency club, the country's central banker said on Friday.

"The problems faced by the Greek economy are extremely serious. However, the key question is whether it will be easier to solve them from inside or outside the eurozone," Bank of Greece Governor George Provopoulos, also a European Central Bank Governing Council member, said in an opinion piece in the Financial Times.

"My answer is that it will be unequivocally easier to solve these problems from within the euro area."