Roll Numbers:
Based on the roll numbers above, where the first two digits indicate the center ID: How many new roll numbers must Center '17' register to have the same total count as Center '15'?
Show answer & explanation
Correct answer: A
Explanation
Given roll numbers:
1511, 1622, 1533, 1744, 1655, 1566, 1777, 1799
First two digits = Center ID
Center 15: 1511, 1533, 1566 → 3 students
Center 17: 1744, 1777, 1799 → 3 students
Required new registrations = 3 − 3 = 0
Hence, the correct answer is option 1.