310 of the runners in a marathon are Koreans. 27 of the remaining runners are Egyptians, 35 of the rest of the runners are Vietnamese, 72 are Filipinos and 30 are Indians. How many more Koreans than Indians runners are there?
| Koreans |
Remaining runners |
| 3 u |
7 u |
| |
Egyptians |
Rest of the runners |
| |
2 u |
5 u |
| |
|
Vietnamese |
Filipinos |
Indians |
| |
|
3 u |
2 u |
| |
|
|
72 |
30 |
Total number of Filipinos and Indians
= 72 + 30
= 102
2 u = 102
1 u = 102 ÷ 2 = 51
Number of more Koreans runners than Indians runners
= 3 u - 30
= 3 x 51 - 30
= 153 - 30
= 123
Answer(s): 123
