310 of the runners in a marathon are Filipinos. 27 of the remaining runners are Indonesians, 35 of the rest of the runners are Greeks, 58 are Japanese and 20 are Mongolians. How many more Filipinos than Mongolians runners are there?
| Filipinos |
Remaining runners |
| 3 u |
7 u |
| |
Indonesians |
Rest of the runners |
| |
2 u |
5 u |
| |
|
Greeks |
Japanese |
Mongolians |
| |
|
3 u |
2 u |
| |
|
|
58 |
20 |
Total number of Japanese and Mongolians
= 58 + 20
= 78
2 u = 78
1 u = 78 ÷ 2 = 39
Number of more Filipinos runners than Mongolians runners
= 3 u - 20
= 3 x 39 - 20
= 117 - 20
= 97
Answer(s): 97
