In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
4C 2B 3A
28A ? 45B
7C 5A 15B

A. 10C

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
7 9 21 27
4 2 36 18
9 4 54 ?

B. 24

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
3C 27D 9E
7I 21K 3M
4D ? 7J

B. 28G

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
13 12 5
17 15 8
25 24 ?
29 21 20

A. 7

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.
18 24 32
12 14 16
3 ? 4
72 112 128

B. 3