Number of players in three events E1, E2, E3 from six countries, with Male:Female ratio.
| Country | E1 | E1 M:F | E2 | E2 M:F | E3 | E3 M:F |
|---|---|---|---|---|---|---|
| India | 480 | 2:1 | 500 | 17:8 | 700 | 5:2 |
| USA | 1280 | 5:3 | 1440 | 7:5 | 1500 | 2:1 |
| China | 1100 | 7:4 | 1160 | 13:7 | 1240 | 3:1 |
| Russia | 1300 | 8:5 | 1320 | 7:4 | 1500 | 8:7 |
| England | 800 | 3:1 | 840 | 9:5 | 900 | 5:1 |
| Germany | 650 | 16:9 | 728 | 3:1 | 750 | 2:1 |
What is the ratio of the number of female participants from USA in event E2 to the number of female participants from China in event E3?
A60 : 31 ✓ Correct
B29 : 31
C27 : 31
D58 : 31
Correct answer: (A) 60 : 31
Explanation
The ratio is 60 to 31, so that is the answer.
USA females in E2 are five-twelfths of 1440, which is 600.
China females in E3 are one-fourth of 1240, which is 310.
So the ratio is 600 to 310.
Dividing both by 10 gives 60 to 31.
Hence 60 to 31 is correct.
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