| Population in largest city | Answer | % Correct |
|---|---|---|
| 25.5 M | China | 100%
|
| 28.5 M | India | 100%
|
| 10.5 M | Indonesia | 100%
|
| 21.5 M | Mexico | 100%
|
| 25.6 M | South Korea | 100%
|
| 18.8 M | United States | 100%
|
| 21.6 M | Brazil | 97%
|
| 20 M | Egypt | 97%
|
| 37.4 M | Japan | 97%
|
| 15.4 M | Pakistan | 97%
|
| 12.4 M | Russia | 97%
|
| 14.9 M | Argentina | 94%
|
| 13.5 M | Philippines | 94%
|
| 14.7 M | Turkey | 94%
|
| 10.9 M | France | 91%
|
| 13.4 M | Nigeria | 91%
|
| 19.5 M | Bangladesh | 85%
|
| 10.6 M | Colombia | 85%
|
| 10.3 M | Peru | 82%
|
| 13.1 M | Democratic Republic of the Congo | 79%
|