The table below provides information about the marks obtained by a group of students in a test.
| Marks |
No. of Students |
| Less than 10 |
2 |
| Less than 20 |
5 |
| Less than 30 |
6 |
| Less than 40 |
8 |
| Less than 50 |
10 |
How many students scored at least 30 marks but less than 40 marks in the test?
1
8
2
3
3
1
4
2