311 of the runners in a marathon are Koreans. 38 of the remaining runners are Indonesians, 15 of the rest of the runners are Vietnamese, 79 are Italians and 29 are Japanese. How many more Koreans than Japanese runners are there?
| Koreans |
Remaining runners |
| 3 u |
8 u |
| |
Indonesians |
Rest of the runners |
| |
3 u |
5 u |
| |
|
Vietnamese |
Italians |
Japanese |
| |
|
1 u |
4 u |
| |
|
|
79 |
29 |
Total number of Italians and Japanese
= 79 + 29
= 108
4 u = 108
1 u = 108 ÷ 4 = 27
Number of more Koreans runners than Japanese runners
= 3 u - 29
= 3 x 27 - 29
= 81 - 29
= 52
Answer(s): 52
