There is no definitive answer to this question as the cost of a McDonald's meal can vary greatly depending on the location. However, some of the most expensive McDonald's locations can be found in major cities such as New York, London, and Tokyo. In these cities, a typical McDonald's meal can cost upwards of $10 USD. This is significantly more than what you would expect to pay for a McDonald's meal in other parts of the world such as rural America or Southeast Asia.
So why are McDonald's meals so much more expensive in these major cities? There are a few reasons. First, labor costs are generally higher in big cities. This means that McDonald's has to pay its employees more money to work there. Additionally, the price of rent and other overhead costs are also typically higher in big cities. All of these factors contribute to making McDonald's meals more expensive for consumers.
Of course, not all city-dwellers are willing to pay these high prices for their fast food fix. As a result, many people living in major metropolitan areas will often head outside of the city limits to find cheaper options (like suburban McDs). Others may choose alternative fast food restaurants that offer similar menu items at lower prices point (such as Burger King or Wendy's).