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.
1 4 9 ?
1 2 3 4
2 4 6 ?

Answer: A. 16, 8

The numbers in the first row form a series 12, 22, 32.
So, missing number in the first row = 42 = 16.
The number in the second row from the series, 1, 2, 3, 4.
The number in the third row from the series 2, 4, 6.
So, missing number in the third row = 6 + 2 = 8.