| Population (M) | Answer | % Correct |
|---|---|---|
| 31.3 | Delhi | 100%
|
| 15.5 | Tehran | 100%
|
| 24.5 | Mexico City | 96%
|
| 17.4 | Moscow | 96%
|
| 13.5 | Lahore | 92%
|
| 12.7 | Bangalore | 79%
|
| 9.80 | Bogotá | 79%
|
| 14.2 | Johannesburg | 79%
|
| 10.0 | Chengdu | 75%
|
| 9.65 | Chicago | 75%
|
| 8.40 | Chongqing | 71%
|
| 11.1 † | Lima | 71%
|
| 22.6 | São Paulo | 71%
|
| 10.4 | Hyderabad | 67%
|
| 8.40 | Riyadh | 67%
|
| 17.6 † | Los Angeles | 58%
|