| Rank | Approx | Answer | % Correct |
|---|---|---|---|
| 2 | 1,400,000,000 | China | 100%
|
| 3 | 338,000,000 | United States | 100%
|
| 1 | 1,440,000,000 | India | 97%
|
| 12 | 131,000,000 | Japan | 97%
|
| 9 | 144,000,000 | Russia | 97%
|
| 21 | 69,000,000 | United Kingdom | 97%
|
| 7 | 216,000,000 | Brazil | 92%
|
| 19 | 84,000,000 | Germany | 92%
|
| 4 | 283,000,000 | Indonesia | 92%
|
| 10 | 131,000,000 | Mexico | 92%
|
| 18 | 88,000,000 | Turkey | 92%
|
| 14 | 115,000,000 | Egypt | 89%
|
| 22 | 69,000,000 | France | 89%
|
| 25 | 60,000,000 | Italy | 89%
|
| 6 | 235,000,000 | Nigeria | 89%
|
| 29 | 51,000,000 | South Korea | 89%
|
| 15 | 114,000,000 | DR Congo | 87%
|
| 5 | 249,000,000 | Pakistan | 87%
|
| 24 | 63,000,000 | South Africa | 87%
|
| 8 | 176,000,000 | Bangladesh | 84%
|
| 28 | 53,000,000 | Colombia | 84%
|
| 20 | 71,000,000 | Thailand | 84%
|
| 16 | 101,000,000 | Vietnam | 84%
|
| 17 | 90,000,000 | Iran | 82%
|
| 26 | 58,000,000 | Kenya | 76%
|
| 23 | 68,000,000 | Tanzania | 76%
|
| 11 | 132,000,000 | Ethiopia | 74%
|
| 27 | 55,000,000 | Myanmar | 74%
|
| 30 | 51,000,000 | Sudan | 74%
|
| 13 | 120,000,000 | Phillipines | 58%
|