Identify the roll number that does NOT use only odd digits.
Show answer & explanation
Correct answer: C
Explanation
Check the digits in each roll number:
• 1357A: Contains digits 1, 3, 5, 7 (all are odd).
• 3579B: Contains digits 3, 5, 7, 9 (all are odd).
• 5791C: Contains digits 5, 7, 9, 1 (all are odd).
• 4682D: Contains digits 4, 6, 8, 2 (all are even, none are odd).
Therefore, 4682D is the roll number that does not use odd digits.