Students participating in a contest cannot exceed at least a certain score in the first round to qualify for the next round. There were 620 students in the first round and the table shows the number of students for each score. 80% of the students did not qualify for the next round. From the table, what was the highest score of a student who qualified for the next round?
Score | Number of students |
0 | 9 |
1 | 19 |
2 | 25 |
3 | 31 |
4 | 40 |
5 or more | 496 |