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
?
Answer: B. 24
In the first row, 7 x 3 = 21, 9 x 3 = 27. In the second row, 4 x 9 = 36, 2 x 9 = 18. In the third row, 9 x 6 = 54. .'. Missing number = 4 x 6 = 24.