| City |
City |
City |
City |
City |
City |
|
| City |
X | X | X | X | X | |
| City |
X | X | X | X | X | |
| City |
X | X | X | X | ||
| City |
X | X | X | |||
| City |
X | X | ||||
| City |
X |
Each X in the frequent flyer table above represents an entry indicating the number of frequent flyer miles earned for flying one way between a pair of cities on a particular airline. As part of a promotion, the airline awards an additional 500 frequent flyer miles for all flights originating from City . If the table were extended to represent the frequent flyer miles for flying between all pairs of 20 cities on the airline and each frequent flyer mile award were to be represented by only one entry, how many entries would the table then have?