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.
51
11
61
64
30
32
35
?
43
Answer: B. 27
In the first row, 5 x 1 = 5, 6 x 1 = 6, 5 + 6 = 11. In the second row, 6 x 4 = 24, 3 x 2 = 6, 24 + 6 = 30. In the third row, 3 x 5 = 15, 4 x 3 = 12. .'. Missing number = 15 + 12 = 27