310 of the runners in a marathon are Chinese. 37 of the remaining runners are Koreans, 14 of the rest of the runners are Vietnamese, 51 are Egyptians and 33 are Mongolians. How many more Chinese than Mongolians runners are there?
| Chinese |
Remaining runners |
| 3 u |
7 u |
| |
Koreans |
Rest of the runners |
| |
3 u |
4 u |
| |
|
Vietnamese |
Egyptians |
Mongolians |
| |
|
1 u |
3 u |
| |
|
|
51 |
33 |
Total number of Egyptians and Mongolians
= 51 + 33
= 84
3 u = 84
1 u = 84 ÷ 3 = 28
Number of more Chinese runners than Mongolians runners
= 3 u - 33
= 3 x 28 - 33
= 84 - 33
= 51
Answer(s): 51
