| Length (miles) | Name of river | % Correct |
|---|---|---|
| 3,050 | Mekong | 92%
|
| 3,915 | Yangtze | 92%
|
| 3,395 | Yellow River | 92%
|
| 1,560 | Ganges | 88%
|
| 1,800 | Indus | 88%
|
| 1,578 | Amu | 74%
|
| 1,740 | Euphrates | 70%
|
| 2,268 | Ob | 67%
|
| 2,734 | Lena | 64%
|
| 1,800 | Brahmaputra | 58%
|
| 1,755 | Amur | 56%
|
| 1,491 | Pearl River | 54%
|
| 2,540 | Yenisei | 53%
|
| 1,509 | Ural | 48%
|
| 1,350 | Ayeyarwady | 35%
|
| 1,749 | Salween | 35%
|
| 1,374 | Syr Darya | 35%
|
| 2,640 | Irtysh | 32%
|
| 1,857 | Nizhnyaya Tunguska | 16%
|
| 1,323 | Kolyma | 12%
|
| 1,412 | Aldan | 8%
|
| 1,647 | Vilyuy | 7%
|
| 1,522 | Ishim | 5%
|
| 1,424 | Olenyok | 5%
|
| 1,229 | Vitim | 1%
|