512 of the runners in a marathon are Greeks. 47 of the remaining runners are Vietnamese, 13 of the rest of the runners are Koreans, 74 are Japanese and 18 are Egyptians. How many more Greeks than Egyptians runners are there?
| Greeks |
Remaining runners |
| 5 u |
7 u |
| |
Vietnamese |
Rest of the runners |
| |
4 u |
3 u |
| |
|
Koreans |
Japanese |
Egyptians |
| |
|
1 u |
2 u |
| |
|
|
74 |
18 |
Total number of Japanese and Egyptians
= 74 + 18
= 92
2 u = 92
1 u = 92 ÷ 2 = 46
Number of more Greeks runners than Egyptians runners
= 5 u - 18
= 5 x 46 - 18
= 230 - 18
= 212
Answer(s): 212
