This table analysis question is one of four types of integrated reasoning questions on the new generation GMAT exam.
The layout and format of this table is slightly different from the most common types of tables. Rather than simply displaying X number of columns and Y number of rows, this table illustrates the concept of subcolumns. In other words, some columns can be further subdivided into subcolumns to provide further information about that first column. Some of that information can be in text format and some of it could be numeric in the forms of percentages, dollars, or regular numbers.
In this case, we have 3 major columns: airports, passengers, and movements. The airport column has general descriptive information about the airport - the airport's city name, the country it is in, and its corresponding 3-letter airport code.
It is the Passengers and Movements column that contain numerical data - including percent changes between 2007 and 2008 as well as rankings. You can see, for example, that Atlanta is the airport that is top-ranked both in terms of number of passengers (roughly 90 million) and in number of movements (almost 1 million). There was a slight increase in passengers when compared to last year for Atlanta (less than 1 percent) and a bigger percentage decrease in movements.
source: GMAT Pill & MBA
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