Roll Numbers:
Based on the roll numbers above, where the first two digits indicate the center ID:
Question: What is the total number of roll numbers registered under Center '10'?
Show answer & explanation
Correct answer: B
Explanation
According to the given condition, the first two digits of each roll number represent the center ID.
We need to count the roll numbers starting with '10':
• 100001
• 100002
• 100005
• 100007
• 100009
Total count = 5
Hence, the correct option is (B).