| # | Description | Letter | River | % Correct |
|---|---|---|---|---|
| 1 | The longest river of the continent | A | Amazon | 100%
|
| 2 | Flows through Venezuela, has a large delta | O | Orinoco | 83%
|
| 4 | Rivers forming #3 | P | Parana | 81%
|
| 3 | This river separates Montevideo from Buenos Aires | R | Rio de la Plata | 78%
|
| 5 | Rivers forming #3 | U | Uruguay | 78%
|
| 6 | Longest tributary of #1 | N | Negro | 56%
|
| 7 | Porto Velho, Brazil's river | M | Madeira | 44%
|
| 10 | Tributary flowing into #1, has a namesake Brazillian state | T | Tocantins | 42%
|
| 14 | Tributary of #1, one of the longest beginning with its letter | X | Xingu | 31%
|
| 9 | Rivers forming #7 | M | Mamore | 17%
|
| 11 | Guyana's longest river | E | Essequibo | 14%
|
| 12 | The two rivers forming #1 | M | Maranon | 14%
|
| 13 | The two rivers forming #1 | U | Ucayali | 14%
|
| 8 | Rivers forming #7 | M | Madre de Dios | 8%
|