An examination board assigns unique roll numbers to candidates. Each 12-digit roll number is structured as follows: the first 3 digits represent the Region Code, the next 4 digits denote the Centre Code, and the final 5 digits are the Candidate ID.
Question: If a candidate's roll number is 987654321098, what is their Centre Code?
Show answer & explanation
Correct answer: B
Explanation
According to the given structure of the 12-digit roll number:
• First 3 digits (Region Code): 987
• Next 4 digits (Centre Code): 6543
• Final 5 digits (Candidate ID): 21098
Therefore, the candidate's Centre Code is 6543.