Given below are roll numbers of the candidates who have been shortlisted in an entrance examination. The first two digits represent the city, the second two digits represent the centre and the last three digits represent the candidate. Study the data and answer the question that follows.

2367812	2852118	2453705	2946172
2578912	2452009	2345214	2850504
2687124	2371419	2731899	2578362
2834718	2182617	2431891	2718007
2463891	2486126	2275915	2363321

The maximum number of candidates have been selected from the city with which code?

Correct option is D

Given:

Each roll number is 7 digits:

First 2 digits = City code

Total roll numbers = 20

Solution:
Extracting the city codes:

From the image:

2367812 → 23

2852118 → 28

2453705 → 24

2946172 → 29

2578912 → 25

2452009 → 24

2345214 → 23

2850504 → 28

2687124 → 26

2371419 → 23

2731899 → 27

2578362 → 25

2834718 → 28

2182617 → 21

2431891 → 24

2718007 → 27

2463891 → 24

2486126 → 24

2275915 → 22

2363321 → 23

Now, count each city code:

23 → 4 times

24 → 5 times 

28 → 3 times

25 → 2 times

27 → 2 times

26 → 1 time

29 → 1 time

21 → 1 time

22 → 1 time

Maximum number of candidates are from city code 24.