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.
28
20
7
84
35
12
45
?
9
Answer: D. 25
In the first row, (28/7) x 5 = 20. In the second row, (84/12) x 5 = 35. .'. In the third row, missing number = (45/9) x 5 = 5 x 5 = 25.