Identify the roll number that does NOT follow the first-two-digits year pattern.
Show answer & explanation
Correct answer: B
Explanation
In the given roll numbers, observe the first two digits representing the year:
• 19A502: Starts with 19
• 19B604: Starts with 19
• 19D806: Starts with 19
• 20C705: Starts with 20
All roll numbers except 20C705 share the same initial two-digit year code (19).
Therefore, 20C705 is the odd one out.