310 of the runners in a marathon are Greeks. 37 of the remaining runners are Indonesians, 14 of the rest of the runners are Vietnamese, 69 are Koreans and 12 are Italians. How many more Greeks than Italians runners are there?
| Greeks |
Remaining runners |
| 3 u |
7 u |
| |
Indonesians |
Rest of the runners |
| |
3 u |
4 u |
| |
|
Vietnamese |
Koreans |
Italians |
| |
|
1 u |
3 u |
| |
|
|
69 |
12 |
Total number of Koreans and Italians
= 69 + 12
= 81
3 u = 81
1 u = 81 ÷ 3 = 27
Number of more Greeks runners than Italians runners
= 3 u - 12
= 3 x 27 - 12
= 81 - 12
= 69
Answer(s): 69
