Comprehension Passage
Direction : Below are given some Roll Number of candidates registered at different centres for an examination. The first two digits indicates the centre code and next four digits indicates the serial number of the candidate registered at the centre.
Now answer the following questions based on the sample of roll numbers.
| 171301 | 211901 | 171817 | 211985 |
| 210603 | 100630 | 272827 | 273105 |
| 230069 | 172107 | 212201 | 101764 |
| 171815 | 230027 | 093421 | 231857 |
| 272105 | 271527 | 231551 | 278903 |
| 212007 | 173105 | 210608 | 171214 |
Which of the following centres had maximum number of candidates registered?
1
27
2
23
3
21
4
10