311 of the runners in a marathon are Vietnamese. 38 of the remaining runners are Koreans, 25 of the rest of the runners are Egyptians, 66 are Japanese and 15 are Chinese. How many more Vietnamese than Chinese runners are there?
| Vietnamese |
Remaining runners |
| 3 u |
8 u |
| |
Koreans |
Rest of the runners |
| |
3 u |
5 u |
| |
|
Egyptians |
Japanese |
Chinese |
| |
|
2 u |
3 u |
| |
|
|
66 |
15 |
Total number of Japanese and Chinese
= 66 + 15
= 81
3 u = 81
1 u = 81 ÷ 3 = 27
Number of more Vietnamese runners than Chinese runners
= 3 u - 15
= 3 x 27 - 15
= 81 - 15
= 66
Answer(s): 66
