1.
According to the image, the number of gold medals in the United States is 36, that in Russia is 23, and that in China is 5 1.
The United States is China's gold medal count: 36/51* =12/17.
Russia is China's gold medal count: 23/5 1.
2.
Total number of medals in China = number of gold medals+silver medals+bronze medals = 51+21+28 =100;
Total number of medals in Russia = number of gold medals+silver medals+bronze medals = 23+21+28 = 72;
Total medals in the United States = gold+silver+bronze =36+38+36= 1 10.
China has fewer medals than the United States: (110-100)/1/kloc-0 =11;
The total number of medals in Russia is less than that in the United States: (110-72)/10 =19/55.
3.
The topic can be set as follows: How much is the total number of Russian medals less than that of China?
The total number of medals in Russia is less than that in China: (100-72)/ 100=7/25.